Social Interactions

Hello people this topic doesnt have to do with nofap or so i think,but i feel the need to let it out, so here it goes.For about 2 months I started training table-tennis in a sports club and I met a girl there that we play together couple of times a week .The thing is even if I feel i have no need for girlfriend ,im trying to talk to her as much as possible.And thats because I have been flatlining like ages and I read all those posts saying that if you dont challenge yourshelf, change wont come .So everytime I say hello (at start i couldnt because I felt like I dont know her enough to say hello),we play and she says some funny stuff and I laugh .Sometimes a word will come out of my mouth, sometimes it wont.Sometimes she will tell me about her day in brief and I will respond with simple questions and thats it .The thing is while this feels a lot to me ,when she talks to me I feel like a toddler.I mean like Im ages behind in social interactions .I think I will never reach that level of casual talking with girls.Why is it so difficult ?Some people here say " work on yourshelf to become a better version of you and girls will come ".And what im gonna do till then ?I mean im trying, I started NoFap ,I do mild workouts ,Im planning to quit smoking on 90 days of nofap ,Im doing well In the university .So?I dont think I changed enough to be in a relationship.Even if somehow miraculously a girl was interested in me firstly I couldnt tell and secondly I wont be able to make a proper conversation with her.Not to mention that Im terrible in sex(I hired an escort couple of times and i couldnt even function,meaning what are basic moves ,how you do that ,how you do this).I dont know really what should I do .The thought of giving up on sex and sexual relationships forever have crossed my mind a lot of times lately . Thank you for your time. (PS:Im not anti-social.I got friends.Im just so ashamed to talk about these things with my friends.Sorry for my bad english.Im on day 66 of NoFap)