I hate my stretch marks😞😖

maria
I'm 15 and I've had huge stretch marks ever since I started puberty, they are all over my thighs, ass, hips, boobs and like behind my knees. they used to be really purple but now they are mostly white and a faint purple/red colour. they feel horrible and are all layered over each other. 
people have asked if they are scars and are shocked or disgsuted if they see them. I'm 5'2 and an average weight I guess but I hate my body and I'm too scared to wear things like shorts or a bikini so I'm dreading summer. I always see girls with really smooth skin and no stretch marks or cellulite and it just makes me feel worse - sorry for posting this on a group that isn't really for problems like this  but it makes me not want to engage in any sort of love or sex lol because I'm too insecure. I'm scared that people think my body and my stretch marks are too gross and disgusting