I have epilepsy. If you have it, please find a neurologist who specializes in seizure disorders.
My medications have usually worked for a period of time, then I go through a period of adjustment and/or change until we find one that works. Most of the medications have side effects and require treatment for them.
My current medication is Vimpat. It has been 100% effective and I've had no side effects. Most of my earlier medications had depression as a side effect, and one worked well for many years, but then started depleting my sodium.