It's delightful to be absolutely free of any expectations. Just show up, miss the swing, make something ugly, be chill about it. It's a treat to fail at things.
ive found it helps to replace time you would be on your phone consuming content with other forms of media/content that is more likely to spark something creative - movies music books journaling - all will help your inner child :) good luck
some recs
movie: terminal usa (1993) (its on youtube)
music: dean blunt discography
books: percy jackson/harry potter series
