feeling confused

You ever get tired of thinking ? like ur mind just keeps going and going and never shuts off, i feel like thats whats happening i’m trying to make everything work and my mind is going like crazy.  how i can raise my 3 year old daughter, how im 22 and have no social life… how my soon to be ex husband just left and never looked back…how im not good enough how am i not likable. shit like that just through out the day….i feel like im going and going never slowing down, and yet getting nothing done it seems like. and fucking up a ton…when does the pain stop and when does it get easier.? how do you know who ur supposed to be now that ur single ? and a single mother.? who am i ? and what am i doing,