Man emotions are funny
One day you're up, one day you're down

Sometimes I don't even know why I'm still trying anymore. Just to waste more time

Get a side hobby. The fewer fucks I give, the more exercise I do and miles I ride. It all balances out.

biggest mood

but yeah as @SortOfTested said, give less fucks. It works wonders.

Don't drink coffee after 6pm At ALL.

If you have a schedule that doesn't work with, then just cut back.

Purpose, passion, discipline. And... Emotions make you human, it's okay if you feel bad sometimes... You may try 'watching' your thoughts from a second person perspective and think how are things leading upto it. Also, Gratitude... for one thought about misfortune, think about something good.. ✌️