No one is perfect in trading and everyone to make mistakes. But there are some mistakes that you ought to have grown past seeing how far you’ve been in that field and have experienced a lot of this mistakes in the past. Buying at the top is actually not a good sign of a trader, especially when it comes to altcoin investment, you need to be very careful and do extensive research before investing in any coin. You have learnt another lesson and hopefully you grow past it this time around and not make same mistake again in the future.