Ok, first off, you're adorable. You have so much energy, you seem so comfortable with yourself, it's great. The problem I see is that you kind of ramble throughout the video, it's alot of backstory and it comes across kind of... well I was thinking in my head "ok get to the point". I probably wouldn't feel that way if I'd been following you all along though, if I knew your channel and was familiar with you I'd want to hear about how you got started and what it was like for you. But the fact that I don't made all that kind of boring for me. At the same time you are so likeable that it won't matter to everyone. Some people are gonna probably tell you you're too energetic and it's weird or something like that, don't listen to them. It's great you're so bubbly.
I think you need to think a little more about snagging the people who have no idea who you are. Add some humor in as you tell your story, do some cutaways to other clips or use text to make the video entertaining. You need to remember that when people don't know you they aren't interested in your personal life yet. So if you want to share some background with your loyal subscribers, do it in a way that will entertain people who have no idea who you are. But outside of that, you shine and have that vlogger spirit. Perhaps you should think more about editing, and adding flare and pizazz to your videos (yeah I said pizazz, you got a problem with that?) But think of a way to spice it up, I know you can do it cause you're just bursting at the seems with personality