Okay, my jaw has always given me issues through my life. This is mainly due to sleep apnea, which was fixed by a tonsillectomy earlier this year. But it's left me with a popping jaw, which always seemed to pop when I chewed food, gum, etc. But that's not the issue, my own father hit me in the face 3 times yesterday and hit me 2 times in my already fragile jaw once on the side of my face nearly missing the jaw. Now I can't open my mouth wide, I can't chew without it locking up or hurting, this only occurred since yesterday. I need some assistance, fast! Before I do something I regret later before I get pissed that my jaw hurts. I am very scared, upset and enraged that this happened to me yesterday.

http://occlusionconnections.com/TMJ/locking-jaw-limited-mouth-opening/

Read that and look up any words you don't know. TM stands for temporal-mandibular.
I would personally opt for botox injections first, at the medical level.
I'd ask around for a good dental specialist, such as a facial/oral surgeon, for the best overall care.

Get a heating pad and put a damp washcloth between it and each side of your jaw when sitting around or lying down, and move your jaw small amounts gently, and massage. Take Tylenol and ibuprofin alternating (that's what I take for any kind of pain).

OR you could have a dislocated jaw, which is very different although it acts the same, but which you would notice being 'sideways' a bit. That can easily be put back in place by anyone, or a nurse at a clinic, by holding the jaw with a thumb inside the mouth on each back molar and pushing down and sideways.

How much does your father hit you? No parent should be hitting a child this way. Are you 18+ or a minor?

I am 16 years old and I appreciate the help from you the hot wash cloth and ibuprofen worked just fine, with a little bit of cracking my jaw, it still feels weird but at least I can chew now. Thanks!