Hello everyone! Need advice from the pros in the music :)

I think you may be on the wrong site.

When I hear about making things with beets I think of soup.

Bandcamp or for all things Russian, FOX news

Hello!
Himself recently asked this question. You can, of course, do everything yourself - upload to streaming platforms, monitor everything. The same applies to post processing - mastering and mixing. But this is a huge waste of time.
There are a bunch of sites where all this can be done quickly and relatively inexpensively. I tried several services and so far I have stopped at theamadei.com. There are pros and cons, as elsewhere, but so far everything suits me.
Test different services, choose what is most convenient for you and use.
I wish you creative success :)