My teachers actually hate me?

like seriously every teacher i have (part from 1 who loves everyone) hates me. i mean i suppose i forget my homework+books sometimes but i am quite a good student. i dont mess about and i get quite good grades. its mostly my form teacher, head of year. they always try to embarrass me even in assessmbly infront of the whole year. it really upsets me. like the past few monthes ive been trying to be so good but they always seem to find something. like they had a massive shout at me because i was 2mins late for school i explained there was traffic but i got a weeks detention. they just treat me worse than other kids?