help please

okay so about a year ago i, i found out my ex (18) distributed nude photos and videos of me on reddit where multiple people found them and have access to them. i was 16 when i sent them and 17 when i found out and he did it while we were still dating. i am now 18 and multiple people have nude photos of me at 16 and i’m wondering if i should get the law involved and if i would get in trouble. what should i do?