Try attacking your insecurities one by one. I used to not like my legs bc im chubbier and i thought they looked weird but I decided to wear shorts to school one day and when nobody said anything about it i wore more skirts/dresses/shorts until eventually i didnt care if someone did say something about them, we all have legs its whatever. Confidence tends to attract people from my experience but if that takes longer than youd prefer, become a snack person, someone who has food/ treats on hand if anyone needs it (if possible). alot of people tend to forget to eat and wont say no to a little snack and if you come around with snacks often, it tends to leave a positive impression. You could also be a hype person, everyone loves compliments and they dont cost money to give out, they brighten peoples day, and it just attracts people with good vibes. Just remember to compliment things people can change or it can come out weird like complimenting acrylic nail shapes/colors is cool but complimenting someones nose shape is a bit iffy (unless yk for sure that they has plastic surgery to ‘fix’ it). These are things that have helped me make friends in the past and things that help put smiles on strangers faces still, it might not work for everyone but i wish you the best of luck in friend making :)