Sticking point is probably converting contacts into dates.
From a random cold approach it would probably be 25% converting into contacts. If they start with "busy" or other excuses when I am asking for Line details I cut them loose as uninterested and count those as unsuccessful approaches as I'm trying to avoid collecting contacts from uninterested girls. In warmer bar and social circle type contexts it would be over 50% giving me their contacts, although these are far more sparingly encountered.
I've not had enough dates from this process (3 non-instadates - none from "cold" approaches, 2 instadates) to say much about the conversion of dates into sexual encounters. Online about 60-70% of dates converted into sexual encounters, though very few converted into repeat encounters. I'm still seeing a few of these girls and they don't seem to identify any issues with my looks, behaviour, sexual skills, etc.
The conversion of contacts into dates proceeds abysmally. Frequently a girl who was warm in person will never even read an initial follow up message, or will read and never respond. If they are responsive I would usually banter a little and then segue into arranging the meeting I proposed as the basis for getting their contact info in the first place, which then results in "busy" and a run-around which continues for 2 weeks until I delete them as definitively uninterested. Occasionally it transpires they have boyfriends (or say they do), or give silly far-future "next month" type date responses, which generally results in a cut.
1) Time-bridging and qualifying
A PUA's goal isn't to just go collect contact info. Some guys forget this, so overly focus on contact collection versus the end goal and overall purpose.
It's better to establish rapport, seduce, and setup a date with her in the future.
This is about preparing the woman for meeting her again in the future. A technique is, before asking for her contact info, is to ask her if she would like to meet again at some point in the future. Can be and often is best to be more general about the day, not pushy on a specific day.
Women that don't intend to ever reply or see you again, will tend to clue you in at this point. Usually, the BETTER you are at this, the HIGHER the contact to date ratio will be. It takes practice, and each guy has to develop his own style at doing this.
2) LOCATION Of Where Collecting Contacts From
I haven't talked about this before, but appears relevant in your case. Certain environments predispose women to be excessively negative towards any men approaching them. For instance, in that location, women are being warned against playboys, hustlers, con-men, or are hearing negative gossip or propaganda about the location. So when you are approaching women in such places, they can take an excessively negative view about the interaction, even if she is pretending to be polite.
Hub, particular clubs/bars, or even an entire area, etc... can have this negative reputation attached to them, so you may want to go elsewhere.
Try other locations, particularly those not associated with any negative gossip or reputations.
3) Positivity & Enthusiasm VS Negativity
This can be harder for some guys to do than others, and is difficult to explain, but I will try. It requires a guy to be more strongly mindful, self aware, and observant.
A) Are you coming off as untrustworthy, scary, creepy, desperate, or weird?
Some guys think they are giving off a certain vibe, but the woman is perceiving it in a different way. It is very important for a guy to put himself into a happy, positive vibe, playful, or "correct" frame of mind and behavior.
For example, I had abpal who was new to picking up women in Japan, and I would mentor him on how to do it. He would talk to Japanese women with this dead serious look on his face. When talking to me and pals, he was all happy and smiles, but to chicks he looked like an intimidating killer. It appeared to be some type of behavior for handling his nervousness. Some guys have odd expressions or ways that they carry themselves, that other view are odd, but they don't know about. Because with your pals, they aren't trying to date you, so ignore it. But women, they see it.
Women will pick up on your vibe, tone, body language, and facial expressions and REACT to them. Sometimes not immediately, because they are scared or being polite, but LATER. Because later they feel "safe" and it's easier to cut you off.
Try to understand the image that you are projecting. If you are not sure, have one of your wing-man pals evaluate you or you may need a PUA coach. Some other things that are helpful in this regard is exercise, Martial Arts/Kick-Boxing, or Yoga. These positively affect your confidence, physical posture, walk, stance, and body language.
B) Directing Women To Feel More Positive About You
This is a very tricky one. It's a concept that some people naturally understand and others don't, but can be taught. Good salesmen will also use this with people. This is where you say key words to people in order to relax and disarm them, and to establish greater rapport and comfort.
How would you like them to perceive you and the interaction you are having? Relaxing, fun, comfortable, trustworthy...? Then USE such POSITIVE words in your conversation and e-mail exchanges, and ELIMINATE negative language as much as possible. In VARIOUS cases, it can make the difference in what she thinks of you in "maybe" situations. Where she would be undecided or debating with herself about you, it can instead tip the balance in your favor.
Sometimes guys don't realize they are injecting negative language and a negative vibe into the interaction. A good example of a problem area is Western sarcasm. The guy thinks he is being witty and funny, but the Japanese woman might think he's an asshole.
4) Being Bad At E-mail/SMS Exchanges
This is also tricky. Save any of your e-mail or SMS interactions where you were successful at meeting, dating, and having sex with the woman. Use that as a template for how you correspond with future women. Success often builds on top of previous success. Keep streamlining, reducing, and simplifying it. Often there will be repeating patterns in the interactions, so use the more previously successful ones.
Coaching
If you get very stuck, you might want to consider a PUA coach to help you push through a problem area. They can observe you or your correspondence and offer specific advice.