Congrats!
You're reading the 200% perfect freelancer's bid for your project.
How?
I've been already working for 2 youtubers, one for an year and another for more an year. Further, I've great skills and good experience of video editing. I can go for all the things you've mentioned, like music overlays, transitions, etc. I can even create custom transitions and effects especially for your work for no extra cost.
At the same time, I wanna mention that I've some amazing OFFERS awaiting for you (check my profile for more info) including cashbacks!!!
I bet you that nobody else would do some great quality work for you within a day for this price and great offers !!!
So, what are you waiting for?
Thank You in Advance