Hello Sir / Chetan. 23 My Doctor Told Me That

hello sir / chetan. 23
my doctor told me that i have insomnia problem symptoms are try to sleep at night but getting hard to sleep,when i wake up late in the morning but my body feel no energy,weakness in body.
my doctor proscribed
0.25 mg alprazolam
20 mg rebeprazole
and zincovit tab
for five days
till five days i have good sleep and feel energy in the morning but on sixth day it is same as before
and how many days its safe to use alprazolam tablets
thanks