First off - smart kid thinking about real estate as a way to grow your money and congrats at having that much at such a young age.
Getting your license is a great option but I wouldn't rush that and waste money just yet. You don't pay a buyers agent as a buyer - you only pay when you go to sell the property so I would get your license and take your time finding a good brokerage before you intend to sell to save the commission money.
The cash on cash is going to be limited with interest rates rising but long term equity is your goal. Take on as much as you can yourself to save on contractors. Things like demo, patching, painting, refinishing floors, small tile jobs (backsplash), and yardwork are all easy to learn to DIY - YouTube has a ton of learning videos. Never hire a general contractor that plans to subcontract out - you're just wasting money by not finding the subcontractors yourself.
If Nassau or queens don't work out - I work in Putnam Westchester and Fairfield counties.
Good luck!