Well in fact, there are dozens of factors why you may blowing up.
First of all as for me it takes unforeseen situations in the market. Perhaps you opened a trade on the news, but the market went against you. Or gap for example. The second important factor, you received the wrong signal and as a result you blew up. The third factor incorrectly distributed risks and money management. In general there are a lot of factors but the main thing is you understand what was the mistake and did not make it anymore.
Good luck anyway.