Anyone taken cipralex/lexapro?

Hi!
I’ve recently started to take cipralex (still in the first week) to treat anxiety and depression.
I’ve also been heavily addicted to weed, which I’ve managed to severely cut back (just not completely out).
This first week has been rough. I feel sick, no appetite. Tired and drowsy. Like a zombie.
And I’ve been smoking again because I just want to sleep all the time.

Has/does anyone take Cipralex and can tell me about their experience?
Should I stick it out?
Will it get better?
And am I damaging it by smoking still?
Anyone taken cipralex/lexapro?
Post Opinion