Will my Central Nervous sytem recover?

Ive been AVING ANXIETY ATTACKS FOR THE PAST 4 OR 5 NIGHTS STRAIGHT. iVE BEEN STAYING UP ALL NIGHT AND GETTING 3-6 HOURS OF SLEEP DURING THE DAY. o WENT TO THE eR LAST NIGHT AND THEY GAVE ME ADVOCAN went home and slpet for about 7 or 7 hours, They prescribed me with hydroxyzine pamoate 25 mg i have taken 1 and feel relaxed i try to go to sleep and i get into a sleepy stage and forgett about breathing. THen i cant go to sleep because if i dont breath my body doesnt breathe for me? So will i get better?