help to upload

Here is a list of people and organizations offering such services:
https://musescore.org/en/services?service=transcribing&country=All
[EDIT]
and
https://musescore.org/en/services?service=copying&country=All

It's neither difficult nor time-consuming to do it yourself. Takes a little bit of time to learn how to do it, but once you've learned, you'll be able to enter music (either your own or other people's) quite efficiently.

Or you can pay someone to transcribe it, yes. :-)

Dear Rafael,
Welcome to MuseScore! I have had the programme for about nine days.
One thing that I am doing is, as I read the directions, I make careful notes
in my "little red book" and then try the actions on a trial score. I find that
it is quite difficult to remember all the new information - but I can refer
to my notes and am making progress! Writing your song would be a good
way to get going as you will be motivated to achieve the project. Good luck!
Jeff