Is there a dua for that :ramadan?

i had the beats by dr dre and i wore them yesterday and one of my friends saw them and got jealouse..he is amuslim too but he is in a gang so he got his friends so they can rob me by the blessings of allah today was the only day i didnt bring it outside..so when they approached me in the basketball courts i lied and said it was in my book bag so when they went over there i ran to a store which then called police but they all got away now im afraid of them trying to retaliate at me for the police becoming involved. it there any DUA that i can read and hat other advice do you have asalamu aliakum