Should I keep goin or nah?

I have a crush on this person for almost months. And they know that, but just like me he is also inexperienced when it comes to love. But I'm more likely new, so I make this plan that I will try new things using him for entertainment and experience. Our presence for each other has grew stronger, we have silly interaction but never able get the chance to really talk without getting shy to each. So, as time passed I kinda starting to lose interest. I'm not the only one who like him there's another girl too but I have come my conclusion that he is less interest with her.. Since it's my first time trying to get out my comfort zone I have this feeling where I really felt so insecure about myself especially to my apperance and financial status. The more I learn what kind of person he is, I become more and more inferior with myself, I started to let myself down, and become super insecure. To the point I don't even wanna see him anymore so that he won't look at me. Last night I have the chance to take a picture with him, I was happy after a while but small details is bothering my mind. We were beside each other but seconds he slightly move away, a lil bit far in our side, so yeah I'm overthinking maybe he don't find me attractive at all huhu that's why instead of being happy, I kinda focus in that moment. Then one thing that picture got me cooked I look so uglyyy in that picture and yeah I don't want anyone to see that cause I know what they gonna think we don't look good together because he's handsome and me is literally looking like a rat uglier than rat idk what should u call my apperance but ugly as ***. Yeah so I kinda don't want anyone to see that picture but my friend suddenly got em and send that in our gc , like bro huhuhu ಥ⁠‿⁠ಥ I should love that but I look so ugly so, yeah I don't wanna see nalang.