You made it yourself, that's not bad. I would definitely say that the editing needs work, it's hard to read everything when it's bouncing around on the screen everywhere. Slow everything down, and add more actual clips from videos you've uploaded to the channel. I also agree with finding better music. There could be way better music to grab the viewers attention. 3.5/10 with a lot of room to improve. But don't give up! Make an even BETTER one!
Since this is review for review, I'll post my channel trailer, but really only so that you can see something as a sort of inspiration.