I will use the profit to invest on different crypto and also save some of it for personal uses. We don't know if we might need money for something like emergencies and such then you will have money to spend. Anyway, not that I have tried trading and earning profit but if it ever happen to me then that's what I will surely do when the time comes. I simply need more knowledge for the time being before I delve into it.
After making some profits from a particular project, we can always use part of the profit and invest in other new or old project in the market. This way we can share our investment into different projects and make more peofits when the project before riped and start giving us results. Making money from the market is more of understanding and how to be a wise and smart investor that will not invest in cryptocurrency projects without doing any research that would help us make a better profits.