I can see that you went through a lot of trouble to synchronize the music and the video and you probably worked on it for several hours. It's not very good, dude. The music in particular is terrible.
I agree the music choice is kind of "eh," (but I just don't like Disturbed that much, you'll probably find a lot of others who don't mind) but other than that you obviously put a lot of effort into it and it was good. Judging from your channel you don't have much experience with this kind of stuff either, and for your first time it was great. You'll only get better if you keep working, too. Don't let people get to you.