Real estate investing is all numbers. We run through the estimates, and if the amount of money you could make is worth your while then we go for it. You could buy and then sell a property for a profit (after you add some value to it), or you can buy and rent it out. Both are great ways to supplement your income, or even make a living.
I’m am a real estate investor myself, and I hope the properties I own will help secure my financial future someday. So I applaud your desire to do the same, and I am happy to help.