I need advice..

Wow its been a while since I posted on here but ok here goes. 
Life at the moment has been pretty hard. I wont say anymore but I want to say thank you to everyone who knows about why it's been hard and for their support, love and care that they have given me. I appreciate everything that you all do. 


But there is something that I need advice on. 
I've gotten close to someone and that someone makes me feel happy. But whenever I get close to someone I end up messing it up and because of that I'm getting very scared of my actions and what I do. But the thing is, I like this person; a lot. So much that it hurts. It's like they make everything better just by talking to me about anything and everything. I feel like I can trust this person with my life story and every secret that I haven't even told my best friends about. 
But I'm so scared that I'll mess it up. 
So if anyone has any advice: dm/text/fb mail because I'm really stumped at what I should do to NOT mess this up