Can I stop taking my prescribed medications?
Why would you stopping your medications?
I hear that my mood will improve significantly if I stop my medication
It's okay to re-think taking medications.  Some do more harm than good, really.
I want to try my luck and we'll see what happens.
If you aren't feeling great from the medication because it has side effects, then you should talk to your doctor about it. Sure, it might be better to stop taking it, but you don't know if you are better off.