Things WILL get better.
It takes time to find the right medication, but if you don't feel better within 2 weeks tell your doctor and they'll give your something. I've had people close to me go through the same thing and it took a while to finally hone in on something that works. I know it must feel like the most hopeless and frustrating situation, but hang in there. Something out there will work, you just need patience.
Just remember that it's not your fault. Good luck.