The military is a type of trade school (except for the part where you sign your life away for the agreed amount of time). It can be a positive experience if you qualify. Air Force and Navy are better choices as the Army and Marines are often deployed.
Also, look up trade schools in your phone book. There are many which offer to teach you skills for the work force. Try "technical school" or "trade school." Type the same information into the google search engine plus your city and state, you should get plenty of trade school websites which can tell you alot about the classes they offer.
Good luck!