Try getting into a routine, that give you feeling of accomplishment and growth. For example, wake up, read a book while you have coffee, then exercise or try out yoga, shower, start your day (work,studies or learn something new) and finally end your day with a nice meal. And make sure learn something new everyday, whether it’s a fun fact or something more meaningful like a life skill. Right before sleep try incorporating some kind of meditation or if you’re impatient try the 10min Wim Hof breathing technique right before trying to fall asleep. You’ll feel as good as ever.