When passed, you will be licensed to sell real estate and can begin a new career. Real estate education makes your a wiser consumer, borrower, building manager, investor and home owner. Yes, especially in sales. Compensation for sales positions is almost always based on commission. Having a good source of real estate listings will ensure good income.
Income is based on production of business and is similar to being self-employed.
Generally not, if licensing is the goal, because the state requirements must be met. Real Estate 110 should be taken, plus general education courses that build computer and math skills.