Pretty much this kid and I have been talking for about 2 months and we always talk about dating. We hang out a lot. About 2 weeks ago I had a lot on my mind and made a stupid mistake and told him we should stop talking. School got worse and I really hurt him and I didn't mean to. So A couple weeks after I told him I wanted to stop talking I tried to fix "Us". He told me he lost feelings for him even though I didn't. I asked him If I should stop trying and move on or keep trying. He said he didn't know. What should I do? Should I stop trying?

He said he has lost feelings for you, leave him alone. You were only talking a couple of months, move on.

Yeah but I liked him so much. I want him back in my life.

You know, you can't have everything you want. He he wants to not be with you, you can't make him. Leave him alone. He may change his mind later, he may not but you need to just leave it be.
How old are the two of you?

If you told us your gender it would help just a little bit more. But if your looking just to be friends, apologize to him, maybe if you two are in a same class and have a project be partners. If you want to be more than just friends take awhile, sometimes we say things that we don't mean and it takes time for the other person to get over what you said (but also sometimes they will never get over what you said). Just relax and don't force to get the relationship back because forcing it will just make it worse.

"this kid ..."

He's not someone you want to be involved in. 'This Kid' is someone who took the time to hang out with you that you didn't reciprocate nor did you appreciate, want or need. And when you didn't want it.. you got rid of him. Now you're at rock bottom you now appreciate what you had.

That 'kid' should have the decent sense to know now to stay away from you.