Hiya, please don't take this in the wrong way, but I think it would be in your best interest to improve your work first before you try and get commissions.
I say this because your current skill level is what limits you from getting clients. Also, what you can draw may also be limited (e.g. backgrounds), so that limits your client base. Yes, marketing and networking factor into getting clients but honestly that will probably take you more time than just straight up improving. "Less skilled" artists with super high follower counts likely have a niche (drawing only fanart or doing funny comics) or a very appealing style (well-rendered anime chibis, for example). Unless you go for a niche, you probably won't grow that big without improving your art.
Those comments on your works, don't let them get to you, they're probably people who redirect their anger about their problems at others, that is not good or helpful criticism.
If you post art, good quality art, daily I assure you you will grow over time. Heck if you get good enough you can charge into the hundreds and still have clients!
Heres how it works:
Great art, people likely to share with others even if the subject doesn't interest them, more commissioners will see.
Good but not great art, people may share if the subject interests them (e.g. fanart) but less likely, less commissioners will see.
I hope you don't mind a bit of critique. A lot of your work comes across as flat and a bit lifeless because you do not yet understand perspective, gesture, or form, essential fundamentals to learn, and the anatomy seems off because occasionally limbs bend in strange ways they are not supposed to, or would naturally or comfortably. As an example, try doing the pose of this character as accurately as you can in a mirror:
DeviantArt
I tried it myself, it's not a very comfortable or natural way to stand, and very stiff.
Compare it to this work, which I think is your best by the way:
www.deviantart.com: Raffle Prize: honggseok
Easily do it in the mirror, and a very believable/natural pose. If you pushed the gesture more by having her lean towards the viewer, tilting her head to relax it, and really having her hip push into her hand it'd look even more lively.
Study proportion, perspective, form, and gesture. Dedicate some time each week studying a different one. Read some books by Loomis. They are a great place to start. There are pdfs online.
www.alexhays.com: Save Loomis!
Improve your work. It will pay for itself, I promise you. If you did six months of active regular study you will see significant improvement in your work, and be much happier. One day you may get so many comms you'll have to start refusing commissions and make a Patreon! Work smart, and hard.