But I'm facing another problem. I don't know what to do with the money, how to use this very large monthly income to actually make myself rich. The app store income is going to end soon enough - the ecosystem is pretty fragile. Now that I have this raw cash, no debts, have a job I enjoy, don't want or need a car, my apartment is perfectly comfortable, what can I do?
I do NOT want to invest in the stock market, or invest in anything long term like bonds or property. I want to somehow use the money to make more money quickly (within a 2 year time span). But I have no idea! What I know how to do best is the app store, but I want other type of things that do not require much time investment, but give as good returns as that.
What do I do with the money? How do I invest it in making more money quickly?