Self Doubt

i’ve been having this reoccurring thought where i tell myself I just want to rest I’m so tired even when I am not and have lots of responsibilities to get done. It’s very disempowering and i’m not sure if i am burnt out or if this is just a lot of self doubt. I feel like sometimes i’m still stuck in the mindset that everything is going to collapse under me and i’m going to be left to pick up the pieces again. Not sure if I should do an ERP about worst scade scenario if I did rest or worst case scenario if I didn’t? I’m just still trying to decipher between the really scary voice and the one that just pops up and says things. Idk if this is making sense but it’s been happening a lot and i’m not sure how to go about it.