First of all, sorry for my bad english and cringy content:

I(30M) had been texting this girl(28F) for a whole year through tinder. No meet up. Only texting.

We both treated each other like good internet friends, nothing more than that. She is a down to earth, sincere and sweet girl. We both never have a relationship before.

But things change suddenly. I asked her out last month for night hiking ... And when i first saw her... wow !! she is totally my type. Things went fine that night, she was cute & talkative. I also behaved like a friendly guy, 0 flirt(Tbh i don't even know how to flirt...). She suggested for a second date before we left and I thought it was for sure a win and i finally have my first girlfriend !!! After we went home we texted more and said goodnight to each other.

The day after I texted her "morning" and she didnt respond. I texted her again a few hours later and she replied unenthusiasticly. That night I felt desperate and texted her : "I find you really attractive. Please don't block me after this. "

She replied something like: " Sorry you scared me. I really didnt expect this. I'm a "laid back person", I think your feelings are some sort of illusion? I appreciate it, but i think it is too exaggerated. I'm still not in the situation. ...Are you OK?"

Me : " Haha I'm fine, don't worry about it. I know its crazy for me to say something like this. Please don't feel guilty after this"

After this I still keep contacting her. She didn't block me. Yet I become the one who initiates all the talks. She often replies late.... We only talks about politics and small stuffs. She clearly lost all her interests on me after that date. I know I'm like an annoying fly to her right now... The way she still responding is just being kind .... I understand it but I still like her a lot. It's so hard for me to just move on to the next girl because I don't have much chance meeting another nice girl like her.

These days I read a lot about stuffs like needy, clingy, no contact rule, oneitis, text only for dates , etc ... It seems like the most important thing to do, is to re-program my own mind and stop bothering. Even if I successfully seek her attention, nothings gonna change her thoughts on me, I'm still unattractive. The whole point is to change myself throughly by being tough and complete as a person? Can you guys give me some advice please