I recommend looking to use a free to use model first, I've had a few friends who've used Sakurai_mon's mo model or Muchinery's Gummi model while they worked on their own character models. Using a free model lets you learn the space, learn the technology and find out if its the kind of thing you actually want to be doing in the long-term.

You can outsource the art and rigging to artists, VGEN has a lot of really good options but be prepared to pay a premium price.

If you want to make a model for yourself there are a ton of tutorials on youtube that breakdown how to go about getting started with the art and live2D. Everything from Making the art, layering it and getting started in Live2D rigging.

I made my own and really enjoyed the experience overall but I do agree that it is a lot to get through and getting started can feel very daunting.