Extremely drowsy yet can't sleep.

I've been taking 10mg for a couple weeks now. All is well EXCEPT this horrible drowsy feeling when I drive or do anything monotonous/repetitive. I just cannot keep my eyes open. I immediately need to sleep. I fall asleep so fast, but I can only sleep about 3-5 hours and I wake up many times within that range. It's not a good feeling, but the pros have outweighed this sleeping, drowsy con. Anyone experience this?

The drowsy while driving is so bad that I'm scared to drive. I even stopped taking the pills to see what would happen, and I still have this problem. It better not be permanent because how the hell am I supposed to live like that?

Psyciatrist said to take it at night instead, and I suppose it's slightly better than before, but now I can't sleep for too long.