So I'll try to explain my situation best as i can and im going to need some advice from someone who had experience in that stuff.

So im talking with one girl on the internet(we talk non romanticly), and I really like talking with her but recently i noticed that i started love her, i think about her all the time and I cant get anything done since im always thinking about her.
It also has a negative impact on my life irl because if im always thinking about her then I won't develop any feelings for a woman that i can actually meet irl.
And i don't want to have those feelings for her.

And here comes my question:
If I where to tell her how I feel would I stop thinking abaut her as much or would it just make it worse?

I'm also afraid that if I tell her how I feel she will Stop talking to me, and I wouldn't want that because I really like talking with her, I just want to stop thinking about her all the time.