>match cute girl on tinder
>don't chat very much but we agree on a date
>first one on one female contact in 2 years
>my 22yo khv's ass first date ever
>get dinner
>extremely nervous
>try to talk about trivial stuff like family and where she lives
>I come off very forced and there are many silences
>afterwards she sends me she did enjoy herself (much too my surprise)
>send her some messages the next week but her responses seem so cold I stop messaging
>she never messages anything
>it's been 4 months already
How bad did I fuck up?
Instead of focusing solely on how much you fucked up, consider that it simply wasn't meant to be?
Just because she isn't interested anymore doesn't necessarily mean you did anything wrong. She said so herself that she enjoyed it; if it were really so bad, she probably wouldn't have bothered to say anything at all.
There could be any number of reasons she stopped reciprocating that have everything to do with her and nothing to do with you.