You're talking about a $50 investment and you're talking about real estate? As crazy as it sounds, no investment will generate much profit with $50 of capital. You need more money, I think if you don't have money to invest, it's better to focus on increasing your monthly income, if you have enough money left for living needs, then think about investing.
It is important to search a lot of information before investing which you need to understand and keep in mind were invest what you can afford to lose. I agree with you that it's better to focus on increasing first your monthly income aside from that is you have to divide your earnings which is you need to separate first your base or your savings, and it's up to you if you will re-invest half of your money, but you have to consider the risk that it may not all be a good outcome for you.
Another strategy is that they take out a loan and pay it on an installment basis because no matter what they do it will cost them time if they find a second job meaning if you plan to invest you have less time for your investment so others take the risk of having a loan but it is not recommended because we know that if ever it is not a success you are still paying that loan but at least you have tried and are still able to pay the loan.
It is better to save first and accumulate capital no matter how big or small your income is because that is where your capital starts and you won't be taking out a loan. But always keep in mind that you should always risk what you can afford to lose stay out of your comfort zone and always learn about your investments.