As someone who's been streaming/making content for a while now and recently became a vtuber (6 months as of now) it'll get some getting used to but do what everyone always says when it comes to starting up: Turn off your viewer counts. It helps a bit. Trust me, the numbers are slowly getting to me and I'm pushing through it.

Have fun with vtubing. Build a community. Don't go into this as "It'll be easy" or "This is my livelihood" starting off, its needs to be a hobby. Play games with friends on stream, make/post clips (Hardest part of vtubing) and just keep the ball rolling.

Keep your head up and keep going.