Coming from a person with a funky family surrounded by people who had completely normal ones, I get that. It's easy to fall into a hole of anger just because it feels like other folks always have things better.
There will always be people with more shit, better shit etc. It's important to remember that shit doesn't matter at the end of the day. Shit only exists to bring some amount of happiness to people at different times. It doesn't make people better or worse. It brings no such value. I hope there comes a day when everyone can have all the shit they want, but that probably won't happen. There's ways to learn how to make shit, or better ways to get shit.
And as for drawing, there is no better or worse art. Art is such a strange phenomenon that there is no point in judging its value. It's special and fantastic that any art exists at all, as human beings are the only people who can create it. Plus, skill comes with time. I know it sounds cheesy but practice always helps.
sorry for the wall of text- but I do hope the insight helps, even just a lil. But the point is, you're not the worst and you never will be. Hope I hard to hold onto but it's always rewarding.