Yes you're right. there must be desire and hard work. And failure is a process to achieve success. The point is always enthusiasm, never give up, and keep moving forward even though you often fail.
Well you do sometimes need to give up. That's where self-reflection would come in. Things don't work out for a reason and that's hella fine. Maybe don't give up in life, but give up to those things that aren't working out as it would like you're going to water a dead flower and it's surely just a waste of time to continue being hard working on that kind of passion.
I can recall back in the days of being persistent in day trading, and I thought I was just starting up and still in that what people call "Adjustment Period". Turns out that it isn't really just my cup of tea. I gave up day trading and was happy in full-time hodling ever since. No hates in people doing day or/and stock trading though, everyone has their own capabilities.