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Anything medical really.. CNA (Certified nursing assistant), CMA, Dental Assistant, etc..
The "assistant" certifications are typically a way to work along-side the profession you want to be in for the long-term, but that allow you to get some job-experience and monetary income while you finish your schooling.. I wouldn't recommend a 1 year program for a long-term thing, maybe 4-5 years at most, while you save up to continue your schooling..
If you can extend your limit by a year, you'll open up a whole spectrum of options.. From photography, to xray techs, to dental hygenists, etc.. And all those professions CAN average about 20/hr depending on where you work, the geographical area, etc.. (So as to say, a CNA in my area (small town) who is working at a run down retirement home, will make more money if they moved to a bigger town and worked at a hospital)..