I was kind of the same bubble as far as the anxiety part, I used to be real anxious because I would stay indoors alot and game all day. If your body becomes comfortable doing that, it won't know what to do in the real world so I took a break and decided to travel more. I've been hitting countries even in this bs ass pandemic but it's helped me overcome alot of that anxiety flying everywhere solo after my first Japan trip in 2019. Now to put my two cents onto your problem here, not gonna lie what I recommend you do is buy 2 16oz strong zeros and full send them right before you go into a club. I've always been a fan of EDM music and somewhat shuffling so it all worked out when I found a couple clubs that had my type of music. One night I ended up going with a guy I had met in Akihabara and man we had a good time (I'm a guy btw)! We ended up finding a group of chicks and we both got to hang out with one for the whole night, I don't really remember much of that night other than puking on a train almost at 7am. Honestly just do what I told you and you'll be ready to let loose lol, I legit was the only dude shuffling in the club but ended up having my arm around a Japanese chick at the end of the night because my confidence I guess lol? Everytime I see that video on my phone I myself can't believe something like that happened lol. As far as clubs vs bars, the only time I've ended up with someone in my bed was at a bar and that was a few months ago. I've wasted so much money on P4P but I could not believe I didn't have to pay for her and she was like a 9/10! Every escort I have been with has told me why am I using their services because (not to be cocky) they say i'm too young and cute that I should be just talking to girls at a bar. I took their advice and I'll probably blow half of what it cost for a good escort for a hour to have more fun in a night at a bar! I feel like bars without all the loud music, having to dance, and more people you can really get close to someone alot more and if both you guys are on the same page as far as a connection and drunkness you can expect for some late night fun! Sorry if I talked about myself too much lol but take some of the things I said and use them towards your goals.