I'm a 23 year old student. I asked a friend from before what was my problem with people, and she said I'm cold or unfriendly. She's korean and I told her that I met almost a dozen of korean girls before who didn't try to contact me after a rendezvous or two. These weren't for dating, only for language exchange.

She used exactly the word 무뚝뚝하다 (I can't link) for reference. When I talked about that to other acquaintances, even family, they agreed. Another person who I spent a weekend with said I'm not energetic and didn't want to talk to me anymore.

I associate most of these things to anxiety, because I also know I hate approaching people and I'm always embarrassed when a stranger (even in my university) talks to me. During these 4 years of university I only had one friend who I don't meet anymore.

So the question is, can I change that ? My psychotherapist (who I think is useless) says I can change but doesn't offer me any solutions. I thought about trying Xanax again even though I'm not depressed. It's annoying because I can't seem to make any friends, when people get to know me they stop talking quite fast. I also never had a relationship before.
(family says I'm like that since I'm about 14 years old)

My sanity score : imgur.com/70NHF6e