It's awesome that you're already thinking about investing at 18 @Michael Duignan.
One great way to start in the real estate industry and make money right away is to get a job in the industry. Work for a property management company or a contractor. You could even get your real estate license. Working in the industry is a great way to learn more about how investing works, meet people who are doing deals, and make money.
Save that money and you'll be buying your own deals in no time. Good Luck!
Congrats to you for your ambition! I work with a bunch of young aspiring real estate investors just like you (in a free online group), and I am willing to help you out with some advice or even chat on the phone if you wish. But first I recommend you read this article I wrote for Bigger Pockets titled How to Invest in Real Estate Before Turning 21. Once you've read it, let me know your thoughts and if you have any questions. I am a high school teacher in Colorado and I am always looking to help young people get started in real estate investing or help in any way I can. Let me know if you want to chat sometime. https://www.biggerpockets.com/...