Freelancing has a lot to do with building and maintaining a positive mindset. One of my top tips to get in the right frame of mind is to listen to podcasts.
Here are my favourites - do you have others to recommend?
Being Freelance
The Freelance Fix
UnF*ck Your Brain
Smart Habits for Translators
Marketing Tips for Translators
La Cohorte
Translucides (Tradupreneurs)