Side effects - Prozac (Paroxetine) Causing Insomnia?

[200Ponies]

I have been prescribed prozac for depression (hence the lack of "SWIM") and have been taking it for about 2 weeks. Every night when I go to sleep I fail to do so untill It is time to wake up the next morning, luckily due to an injury and an insurance policy I don't have to work and can usually force a few hours of shuteye in the morning, but I am constantly tired. Before I was taking prozac I slept for about 9 - 15 hours a night, now Its a struggle to get any sleep atall. I spoke to my doctor and she said to take the Prozac before I go to bed, but so far that has not helped and I think it may have made the problem worse.
I know the simple solution is to get prescribed something to put me to sleep, but I would rather not have to take more pills. If all else fails would ketamine make a good (although costly) replacement to Prozac?

Thanks in advance for your help.
Tom xxxx