How do I stop having homicidal, and suicidal thoughts?

I think I have OCD, and I have thoughts of killing people that I don't want to have, and they are ruining my mental health to the severity where I want to kill myself to make them stop. At a very young age I had plans for how I would do these acts, which I knew that I shouldn't of course, and as well as now. I can't take this any longer please help.

My mom has OCD, and I am not trying to self diagnose. I have talked to her about it as well

I'm sorry you're going through this.
Have you gathered methods, formed a plan, or otherwise feel you might actually kill people, or is it rather that you have thoughts that you don't expect to act on that are bothering you?

I don't want to do it, but i'm scared that I will one day go crazy and will do it. I don't want to

Do you have a psychiatrist or would you be able to see one? I'm not sure if there is some medication that could help, but maybe there is.

You could also try the treatment methods in this link:
Chinese Herbal Medicine and Acupuncture, World's Second Largest Medical System