How can I fix my lazy eye? (photo)

I'm 20 and for about 2yrs now I have noticed my left eye being lazy. When I was a child, even a teen, there was no lazy eye. NOW every time I look in the mirror I see it. Honestly this has lowered my self-esteem and also keeps me from taking pictures because I feel like its ugly. There's deeper things behind it, but I won't go into that here. It's embarrassing for me to even put these pictures on here. I feel like this will be a good start towards boosting my confidence. Please help! Thank you.

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