My advice is my opinion and it is very extreme but if you're serious about real estate and retiring at 30 this is what you do.
Dont go to that university(unless you have a full ride scholarship). The student loan debt will cost you years of retirement. If you must go to school go to trade school or community college.
Never finance a car for any reason.
Work two jobs for a few years to try to save your first 20-30k or more. Consider working for a contractor to learn handyman skills, that will be very valuable when you start investing.
When you buy your first home you must buy a multi family with an FHA loan and house hack.
Avoid debt on anything other than rental properties and live very frugally.
Dont date until you are 25. By then you will know what you truly need as a partner, find someone with the same drive and frugal discipline. If you marry someone that wants a big fancy house and always needs a brand new car you will forever be trying to make up for those debts.
If you do all this and stay focused you will be financially free no later than 30.