What is up? I'm having like crazy mood swings?

I’m 13 and going to be 14 this 25th and I’m like having crazy mood swings. My life is a little rough and I do things that are caind off to take my anger and frustruations out. The thing is that like one second I can be like really happy and I’m loving my life, and then the other second I’m like all mad, and in those moments I do bad things, I yell at adults and stomp out of places. And like is bad, I have gotten suspended soo manny times, and know I’m traying to watch it because nex time I will be expelled. I have a lot of things going on at home and I guess school, and I’ve chanched soo much, I went from this pearson who worried about her grades and down to earth to this crazy party, could care less girl. And then I’m like back on traying to get good grades because I like want to get far in life. I can’t talk to the school cauncelor because we had our big fights and like Big and we don’t even look at eachohter anymore, and my perents are like sooo not soportive and I have no other famely, I have tried to going to like chat advices and it works a little but then I’m back, I have cut myself and also I have had soo manny toughts of suacide, I came to the point of having a bottle of morphine in my hand to drink it all and die. I want to put a stop to this but I don’t know how, I really need help, if anybody has any suggestions they are welcomed=) Thnaks for thaking the time to read I know it was long.