How can I protect myself ?

Je

I’m 15, and alot of older men hit on me. For example, as I go to the mall, older men will ask me for my number and try to touch me 🤦🏼‍♀️. I don’t try or look older than my age, and infact Im only 5’0 and 115 pounds so I am small. Im scared that one day one day they’re gonna hurt me when I walk home from school or anything... what can I do?