Hey Sara !
i wish u'r doing fine ,
well , i got my bac this year , so i tasted both of bem nd bac
for me : bem is a petty exam , it has no importance , it just allows u to enter to the secondary school
bt i didn't say that we must not do efferts or work hard , yes we must do that
Coz when u get an excellent mark , ur confidence increases in urself , u feel so proud nd excited to go on, ur family ur friends even ur teachers feel happy for u Dear ,
just imagine that happiness when they'll tell u that u've succeeded nd u got an excellent mark , the mark which u hope u worked to realize it...emmmm too special feeling i swear 
that's why , try to be optimistic nd enjoy ur time , don't work hard from the first day , try to have fun sometimes nd forget the stress , bt u must revise ur lessons nd consontrate very well , understand more than memorize...at once
i know u can do it Girl , just go on
i'll always pray for u sis , we r all here being with u suppoting u nd helping u in anytime
ur success is waiting for u.........don't be late