Is my sex drive gone forever? Starting to get really depressed

I was given lexapro for my anxiety by my doctor, she didnt tell me the side effects which I'm fairly upset about. Im so frustrated and scared that it could be gone for good, I'm young (17) and I'm usually very horny and easily aroused and now absolutely nothing, cant orgasm or get aroused. I know this is one of the side effects but I took lexapro for 3 days then stopped like 2 days ago, because the side effects were horrible. My doc said it was okay to stop.

When will my libido come back? I feel broken and weird, I dont enjoy masturbation and I cant orgasm.