1. Real estate investing. You can pay for a course (I would reccomend RETIPSTER for land investing) but when you are just getting started, for cheap or free you can watch youtube videos and read books. Spend an hour learning every day and in a few months you will be understanding a LOT more about it.
2. Getting your personal finances in order. Get the basics of an organizational system/ budget etc and your accounts set up. Profit first is a great principle that can be applied to your personal finances as well.
3. There are SO many ways to finance real estate deals.. I would reccomend saving up and having some capital. But you can ask for owner financing, find deal funding partners, etc. If the deal is good enough, you will always find the funding.
Hope that helps?