Open Question: I'm never attractive enough..?

I know it sounds stupid, and I shouldn’t worry about it. I’m 17 and a guy. I have a lot of insecurities anymore and I want to get rid of them. Whenever I look in the mirror, subconsciously I think I’m really hot, but then I think about it. I’ll think I’m being superficial and feel bad. It’s like I’m aware that I’m attractive, but I feel it’s wrong to think that or something. I dunno. Whenever I ask someone what they think online or in person, they at least give me a 7/10. I’m about 5’10, tan, athletic but not really toned (yet). I’m usually okay whenever I’m not around attractive guys (no homo). I just think I need to be the hottest guy ever, which I’m not and that bugs me. I real ly hate this feeling because whenever I see a guy that’s hotter than me or gets the girl I wanted, I get really down and feel kind of worthless. I have a lot of hang ups about stupid stuff. Like, I’m scared of dying alone, I can’t look at myself without wanting to change something, I get intimidated by other guys, etc. How can I change this? I hate feeling intimidated or sad over something that doesn’t actually matter. I just want to be able to talk to a girl and not think she’s trying to find someone better because I’m not good enough. Any advice that is helpful? :/

Open Question: I'm never attractive enough..?