hey shortandcute. I understand what you're going through, and the best I can offer is try again next time.

I've been dropping out of classes for about 4 years now, and I always get further the next year, or only drop one class instead of all of them. The key is just keep going back. If money for transit is an issue their might be a fund your case manager, social worker, or pdoc might know of that gives money for transit so people can go to school or appointments.
Work and school are also much different. School I can handle, work I can not. But a few months ago that was the other way around! The expectations put on you in both places can be much different. And work gives you money... which actually really motivates someone!
Take your time. I'm taking 5 years to do a 2 year diploma, but I'm doing it and I'm getting good marks in the few coerces I'm in. And that's what counts. You have more time than you think.
also, if online courses don't work for you, don't take them. There is likely in class programs at somewhere that is free for low/no income households. My fiancé is learning commercial baking free, and his transit fare is covered by the government. You just have to know who to talk to.
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"You can't hop a jet plain like you can a freight train" - Gordon Lightfoot
"It starts with light, and ends with light, and in between there is darkness" -I forget
"Got to kick at the darkness 'til it bleeds daylight" -BNL