room stall if i want to?

ok so i was changing in the bathroom stall bc pe was over and one of the girls said i should not change in there and i should bc i take 80 hours in there, and since im a coward i ignored her and walked out and started crying, but thank god alan comforted me (i love you) and yea thats it. but im scared for tomorrow bc i dont want to change in front of everyone...