Can't express my feelings for this girl

There is this girl that i know and i like her. She told me that she finds me cute and always giving me compliments, she is really an outspoken woman and always telling me how she feels about everything. The problem is that, for some reason, i can't do the same thing even when she's giving me opportunities to show her how much i care for her i don't do anything.

Now i think she's mad and also tired of waiting for me to express myself so now she doesn't talk to me like she used to and i don't want to lose her cause she's really a great person, i love her personality but when it comes to tell her my feelings i just block. It's not just with her but it's like that in my life, i'm so self-conscious i'm afraid to take take a stand and to be judge by other people.

I don't know if i should go see a therapist or just try to push myself out of my comfort zone. I don't know what to do and i don't know who to talk about this, i don't have that many friends so any advice would be nice.

Ask her out on a date, and work it from there.