There are many ways you can get into real estate investment, whether it's flipping houses to sell or renting them out and watching them appreciate in value. First things first though, you need to build a credit score or find someone who is willing to co-sign for you (Not sure what your family situation is but I would assume this would be very difficult unless the co-signer is very well-off or trusts you significantly). Get a credit card and only pay what you can afford in your regular checking account. Never carry a balance or pay late. No bank is going to give you a loan if you have no or low credit. Alternatively you can look into hard money loans (Risky, higher interest and less margin of profit, but they have less stringent qualifications) but I would advise against it as they will typically only lend to people that have experience with flipping homes. I would suggest just taking things slow, you have the rest of your life ahead of you. Find a career that can get you the income you need, and cut back on expenses/save so you can afford a down payment. You can then buy a duplex, live in one end and rent out the other. Bam, you basically live for free! Now save and rinse repeat. This is a safer way to build wealth and you'll be a multi-property landlord and have your properties generating income & appreciating in value (hopefully, you need to scout the areas and see the market growth etc)
If you want to play hard and fast, you can try and get in touch with a house flipper and have them take you under their wing. Lot of risk involved, but payout can be massive if you know what you're doing.