You won't learn anything from your wins, sure that means you do the right thing or you're lucky in that day. But, if you are dealing with losses you can actually learn more about what makes you lost and how to prevent it to appear in your next session or activity in other day. Learning from failure is really important even top person out there are also dealing with big failures and losses in the past.

I did. Didn't know a single thing about indicator, how to manage my emotions and etc. If I had kept winning then I wouldn't had been know about that and can't make myself to be a better person in general.