You have clearly made a 10% profit but instead of counting your profits and reinvest you say i can as well make 30% and then somehow it goes your way. At this point, any desire to go above the 30% you have just made with out a clear cut reason is what we call greed.
This is one of the main reason that will prevent you from maximising profits. Remember that cryptos are very volatile.
A 10% profit that is sure now is better than a 60% profit you are hoping for because it may never come soon.