Questions about Sex Ed and also Sexual trauma

Hi. Im am unsure of where else to turn. I never really got a true sex ed class or anything of the sorts. Like.... if someone could explain some of the questions I have, that would be great. Also...

(Trigger warning for SA)

!I am unsure of some things. I get horny, i know its a like, normal human experience. I masterbate sometimes, but then ill come across something in media about sex and stuff and will freak out and have a panic attack over it. I was SA'ed as a kid, but dont remember specifics. Is this something i should go to a therapist over? Is there a specific therapist im supposed to go to? !<