playing with profit of course is a good strategy and safe. I always do this to keep my bankroll. so that I don't lose it all in an instant.
it is a step that can make us not lose all the money we have. with the strategy we can arrange how the steps we will do.
if appropriate then we can make a profit with pleasure.
Bankroll will depend on how you gonna manage it because if your a type of person who is greedy then that bankroll wouldnt last too long because you will surely bet on big amounts and not minding the possible circumtances or results that might happen thats why if we already gain or profited a decent percentage on your bankroll then its the best time to go out.
Firstly, I think you should decide on how much you should start with your bank roll. How much you're willing to lose (if ever) as long as your ready. I don't want to use my profits when I win bets. I will put it into my cold storage and never gonna touch it again unless really need to.