Nobody said you had to do this on your own. Find your starting ground by asking for help from people that know a thing or two about personal finance. Reach out to anyone in your support system or speak to a professional about how to approach your situation. Your lack of independence might be something other than not knowing how to deal with money — you might have other connected issues that deserve attention so you'll have better success at cutting the cord from that person, credit card company, paycheck-to-paycheck lifestyle that you're trying to shed.
Do this: Don't be afraid to ask questions! Talk to people who have been in your shoes before, like your parents, older friends, and co-workers.