Hey Dmitri, So nice of you to leave such an in depth comment - and my first audio comment I've ever got on a blog! Nice touch.
I am a Designer as my fulltime job. I went to Community College here and have a degree in Graphic Design and got a job right out of college working for a really great company. The kind of work I do there though is much more corporate - advertising, websites, that sort of thing. So the sketches I've started doing for steemit are as a hobby to get back in touch with the 'artsy' side of things.
I disappeared during the 'steemit dip' as well, but my husband @jamtaylor who introduced me to steemit stayed around (he does the original Steemit Photo Challenge, if you've seen that around).
Earning a substantial income through steemit would definitely be a challenge - possible but a challenge. For now it's a nice side hobby. And it's a good motivation to be creative and CREATE new content frequently which in itself is rewarding.
So does your mom have a steemit account then? What's her handle? I'd check out her stuff