<human>: I've been interested in this girl for about three years now and finally started talking to her a few weeks ago. Some time passed, and I went out with her to see Imitation Game on Valentine's Day and she seems at least somewhat interested in me as well (always laughing at my shit jokes, cute compliments, good morning/night texts, etc.).

However, I've struggled with crippling anxiety for years that has been improving lately and the whole idea of getting into a relationship and telling her how I feel puts me in that anxious state I used to experience where I'm on the border of a panic attack. I start to freak out and picture it all going wrong, think of all the little things that could mean she isn't actually interested, and I tell myself to just avoid a relationship at all even though she's made me happier than I've ever been.

Because of this I just want to get rid of all of that anxiety and let all my feelings out over a message even though we're having a lunch and movie date next Saturday. I know that it's a horrible idea, but I don't know what else to do.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Starting to get close with this girl I've liked for years, but it causes me crippling anxiety so I just want to tell her how I feel over text. What should I do?