Body conceous

Hey! So I have arrived in my 20’s and when you are my age sometimes you hook up with people if that’s your intention. I would like a relationship but in the meantime I would like to have a fwb type situation. I have had the chance on multiple occasions but I put them off and then lost the chance. I kept putting them off because I’m worried since my body is chubby. I have tummy I have thighs I have arms I have back rolls I have hella stretch marks. I have a medical condition that makes my weight an issue so I don’t really have a ton of control over it. I am a bright personality and appear confident most of the time, except when it comes to intimacy. Also my friends tend to be skinny and thin as paper and then there is me who is probably double there weight. The cute guys my age always end up wanting the skinny flawless girl a lot of the time. I do have a pretty face but that’s all I feel pretty about. Realistically, I’m scared to let guys see me and touch me.. even though I want it. What do I do!!!! (REALISTICALLY)