College, Business, Industry and Trade schools. There are also Certification programs and of course self study.

What kind of environment do you want to work in. Do you want to do white collar work or blue collar work. If you’re leaning toward white collar then business Schools and finance. If you’re okay with blue collar I know welders and electricians that make incredible livings in their fields. If you want to simply improve yourself, liberal arts schools are worth the time.

ANY education will be worth your time and effort. Even a couple of years at community college will help you learn to think.