The way anxiety medications work, they do tend to affect you with sleepiness. Interestingly, they also tend to control nausea (learned this by being on 2 of them during chemo).
Many, many, many more people suffer from anxiety than would ever admit it. I'm one of them. I tend to obsess about things and over-react to things most people would just let roll off their backs. Anxiety keeps me from falling asleep because I think about silly details.
There's nothing wrong with being controlled through medication, but having gone through a tough spot when my chemo was done, my scans were clean, and I didn't know how to live as a survivor, I sought therapy, and it was really helpful. I opted not to take medication because I wanted to learn to cope and put things in a proper perspective.
When I was laid off 6 months later (despite working through my treatment - thanks former company), it helped me deal with the situation. It wasn't personal as I'd previously have jumped to that conclusion. They simply had to make decisions based upon the economy, and my position was eliminated in the process.
I have a dear friend who has to take Xanax each time she goes to a sales meeting. She's a professional sales person giving presentations all day long, but put her in front of her peers to do the same thing, and she can't cope.
Good luck. Keep trying different medications and combinations of medications until you find one the one that's right for you. Don't be afraid to be in control of your own destiny and see your physician as a coach instead of a director.
Hoping you find yourself in better spirits soon.