I get nervous around her!

ok so there's this girl who I like so much but I get super nervous and shy around her and I never talk to her, I geuss I kinda ignore her when she's around because I'm nervous but we always make eye contact every time we see each other but now I think she lost intrest because I never talked to her (thats my geuss) because now days every time were around each other its like I don't exsist and its horrible she like completely ignores me there's not even that first look to see me and then start ignoring there is just nothing but there were some days when we always stare at each other (this went on like everyday for more then a month1)and I was 99 percent sure she liked me but I couldn't find the balls to make a move . but its not like she ever talked to me? what should I do? any advice well help please and I know I have to talk to her but for me it seems impossible!?
I get nervous around her!
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