Start cooking in a resturaunt. Not fast food, grease joints, but a sit down resturaunt, or a bar and lounge. Bar and lounge food is super easy to make, no drug testing, and the work and pay isn't bad either.

Expect not to get calls back from people, and expect to work crappy jobs. You have to start somewhere. You can't start at the best place and be treated with respect. The first years of working is all about how much crap you can take from the boss. Get a few jobs under your belt for a good time, and things will get easier and easier.

Good luck.