sooo i got the job at the clinic that i interviewed for but now idk if i should take it? let me…

sooo i got the job at the clinic that i interviewed for but now idk if i should take it? let me explain why i wanted to leave my current job first.....FAVORTISM, main reason why. i hate hate HATE the fact that my boss lets my coworkers do whatever they want and i get in trouble for everything. second of all, the schedule. i work 945 to 615 which gives me no time to do anything let alone go back to school and third the pay but for some reason im scared to leave..idk what to do, help?suggestions?advice?.