You have not made any mistake dude, you cannot accurately predict the market, not even with analysis, the important part is that you still made profit with your analysis, and if you start looking at your decision as a mistake simply because the market overshot your target, greed will start setting in and I think you have to quickly let this go.

We cannot always grasp all the profit no matter how much you try, what you should be prepared for now, or watching out for is to get another entry point that will be accurate, because that could be were you will find it challenging, try and wait for the value to correct, then buy, you can now wait for it patiently know what it is capable of doing in the next surge.