If oni i gt bak in time

I hope i can go bak 2 time so i can study p4 again.....my p4 teacher so gd lorhx....we can do wadeva we wan in class....he dun care de but de voice abit loud larhx but if u no scared him he wont do anyting 2 u derhs......i juz hope i can go bak 2 time..