There are times that before you become optimistic in something, you'll have to go through being pessimistic first. Sometimes, you only become optimistic after some realisation and that's after those almost never ending negative thinking that we can't really avoid. In some way, being pessimistic can help too. This is always the case for me. And after grinding my mind with negativities and such, I feel like I have a fuel again to face the world with optimistic mind😆. And I feel like its making me more tougher and braver? Hehe