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.
Investing basically is easy and doing a personal research might give you a head visibility but when you go deeper, there is more mytical wonders beneath it. You can do everything needed as an investor and you can still fail you know right; Lets look back into some incidence of failed investment that has happen in crypto like when the team abandoned a good project and run away after starting well is one good example that you might do a good research about your investment but sometimes, they are not enough to stop the mysery of investments, just hope you don't fall into the wrong one.
I will not advice any person to take loan to invest without any other back up plan to payback. Like what are you going to do if the investment didn't go as plan, don't even dare try that in crypto because I can tell for free that there is no any coin in the market right now that is not at lost from their all time high, they are all down and assuming money were borrowed and invested during those crash time, how will the investors pay back money that was lend to them, no way that is going to end well.
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.
There is no better strategy of investing like risking of self money that you can afford to lose into any investment because by the time the investment goes zigzag instead of linear, you might no worry and even if you should worry, you will not have a fear in mind of how to pay back the loan you took, you will also not worry about what comes after if you fail to pay earlier as agreed; My advice is stay away from loan if you must invest.