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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.
Why is buying at a high price considered bad if this trader knows where to trade it?
Buying high to short on futures is a good option compared to buying high on spot trading. However, futures trading is not recommended for those who do not fully understand how it works and how to minimize the risk, so spot trading is the safer option of the two.
Buying high and losing as the price drops is nothing new, but you don't lose as long as you never sell. You just see your asset estimate go down, while the asset you own remains the same even though the price has gone down since you bought high. The best way to try to recover is to accumulate, but if you don't want to hold on to that altcoin for long, then just wait for it to recover gradually while finding a better asset.