Elrehab,
My DJ GS was 8 weeks.
I have read your comments and I know that you will not like mine.
You assume that your trainers are there to make your life miserable. They are. How else is the airline going to desensitise you to the pressures put onto you by guests? How about commands? Sweetheart, you will have to evacuate an aircraft in 90 seconds... Those commands have been proven to be the most effective.
Sleep... I'm sorry, but do you realise that CC are required to be fully attentive whenever on duty? Everytime you are on duty, you are an actress... If your trainers feel you can't stand the heat, you're out. Plain and simple.
Sorry to be so harsh, but if you understand the industry, you won't have any issues.
V.