So this guy 'A' keeps trying to get me to send nudes or have sex with him. He has sent me pics of his nudes, dick pics, and videos of him jacking off to my Name. I have known him for a few years via online, Skype, and discord. (hes not a old person, hes my age, 17) and hes been doing this since Feb. I would block him but he always comes back on another account of his. He was fine when we first met and what not but then i told him smth and now hes acting like this and its scaring me.
What should i do...if i tell anyone they will take away MY phone and stuff and think That i provoked him...which im not...

Never do anything you don't want to do. If you don't want to send pictures, don't. If he continues its best to tell someone close to you for support.

I've made the same mistake in my past and have always regretted it.

Ignore him and don't send him anything!
When you ignore him long enough he may stop it and realize that he won't get what he wants.
If you can't ignore him, create new accounts. Use usernames which sound totally different to your current ones and he won't be able to find you again.

Kilala you can just delete your account, and start fresh.

By the way, I like the Inuyasha reference in your name, assuming that that is where you got Kilala.
Like >>5 said, deleting you're account would definitely help. Also, if he's 17 you can and, in my opinion, should call the police. That is sexual harassment and he is also now a legitimate sex offender. Take care of this problem now before it escalates. the only reason YOU would get in any trouble is if it's because you, A, saved the pictures, which I doubt you did, or, B, waited too long before contacting the police, which you might have done. I suggest that you call the police regardless of what mild consequences you might receive.
I urge you, call the authorities before this get any more out of hand than it already has! Things can only get worse the longer you wait to do so!

Completely ignore the guy. Threaten to put his pics on the internet for everyone to see or you can say that if he doesn't stop you'll send it to the police.

You probably shouldn't post his pics on the internet, that would make you no better, and would fan the flames. I'd just contact the police

Honestly jus ignore him. Anytime he sends a message ignore his titles, messages, pics and vids, etc. And if not, then talk to someone close about it. Theres also the option of police but idk if you want to go THAT farXD But still it's serious, don't just let it continue, ignore it. Eventually he'll lose interest.

If you're both in the US and he's 17, that means he is considered a minor still. And because he is sending you nudes and videos of himself, he is technically providing child pornography, which is very illegal. So calling the cops, if you choose to go that way, would work, especially since he'd be committing two crimes, sexual harassment and distribution of child pornography.
If you can, ignore him and see if that gets him to stop. If he doesn't, contact the police. Yes, it is that serious.