You need to set your goals and the right attitude to achieved and complete your journey, discipline played a big role since it's the tools to make sure that you are sticking to your plans. If you properly set everything up the outcome will take you positively as no matter what will happen you are capable handling each situations that might strengthen you to continue completing your success.
True! Besides, you should learn how to do risk management. When you set your goal, always think about the worst scenario. In that way, you can set your cut-loss target! Of course, you'll do everything and try to achieve your goal. However, in bad circumstances, you need to be wise and absolutely careful to remove the risk and accept the losses!