.

Live in the moment / not the end of the world

From what i read idk if you are the problem

But either way, like you said, it seems more a confidence issue rather then your ability to socialize and have a proper conversation... Maybe you care way to much about what that girl thinks of you and that holds you back from being genuine and care-free. Try focusing on other things during these days mainly working on yourself. Read/Exercise/Try to catch some sun/Call your friends/Watch a movie. Basically don't give her that much importance for now man, you can still talk to her ofc but just don't depend your happiness on her man.
Think that if that relashionship doesn't work out, you will meet tons of different girls like that again, so don't stress that much about it brodie!

realize when certain people are too lame for it and its not actually you

If u struggling to keep the convo going u should just stop and move on at that point

what i learned is that a lot of times if its super stale its not you. its the other person. if both ppl have interest in each other then they can talk all day everyday. if its one sided it will never go anywhere

talk about s*** you care about. if you truly care about sth chances are you cant shut up about it and women dig passion

Just be you and don't try too hard to be normal or talk about s*** you think people are supposed to talk about

just don’t think so much

this. i had to learn the hard way recently, getting into a very useless small-talk convo with someone i don't care for...it felt forced and cringe. no more tho.

bring up the weather of course
research a lot about meteorology and discuss what weather patterns we are currently in, the types of clouds, high low pressure systems etc

bait them into deep weather discourse through small talk weather talk absolutely