shld i be a sahm?

im so so burnt out at work that i do not have the time for my child. im a teacher and have been going to sch for duties every sat and just ended a stay overnight camp. i hate work. and my boss keep dangling carrots over promotion and work just keep pilng. to the extent i really hate work. i really want to spend more time with lo and i feel guilty for not spending more time. this thought has been swirling in my mind but i have no courage to step down from work. im feeling tired and lost.