A successful trader isn't a trader who makes consistent profit without any loss but rather a trader who knows why his trade went the opposite direction and also a trader who understand risk management.
This is one of the important in trading which most the newbies are not aware of it.
Even before when I started trading, I admit that I made a lot of mistakes, especially the risk management and lack of knowledge because my mistake again for lazy of reading/asking/researching about how trading really works.
Trading is actually a long process of learning and it needs patience and eagerness to learn continuously. It's fine to commit mistakes in the beginning because that's part of learning but we shouldn't trade without enough knowledge at least about the basics of technical analysis. Trading isn't a form of gambling and it needs focus and complete understanding.