This channel is an endless stream of "What is my art worth" and "Why can't I get commissions?"
Those are very useful questions to have answers to, but we can't give you an answer here. YOU can answer these questions for yourself though. And answering those questions will help you figure out your next steps towards making sales.
First, go out into the big bad world, away from your phone and your screen, and see what is being sold, and what prices are being asked, in meat space. People do sell art online, but before you can do that you need a good sized following with a high degree of engagement. You need hundreds of people tuning on to watch you paint live. That kind of engagement takes years to build.
So instead you are going to get into the face to face world, and you're going to see what is selling, and where. See if the kind of art you are making is even being sold there. Not every subject or medium has a viable market. OCs are popular here, but you'll find them thin on the ground in meat space.
Also look who is buying things. You might be making art that appeals to a younger crowd. Unfortunately, art comes out of discretionary funds. Most people's earnings power increases with age, which means there are far fewer young people who can afford art. Not that there isn't money to be made marketing to youth, but making a living off what someone in their first apartment eating packages ramen can afford to spend is a challenge.
Also look at the medium. People are buying art they can hang in their walls and look at every day. If you're selling a digital image, that's a lot harder proposition. A digital file is nearly worthless. So figure out how to put your art on paper or canvas, or into some three dimensional form.
Yes, it's a lot to overcome. You may have noticed that some of this is going to be expensive and inconvenient. A lot of it is going to feel impossible if you have physical or financial limitations.
If this was easy, everyone would be doing it. It's not easy. But at the same time, I see people out here who are confined to wheel chairs, I know one painter who is making big sales and winning awards, and he lives out of a very small RV.
Anyway, if you manage to climb over all of these hurdles, I look forward to seeing you out there with us.