I am so sorry you have all this to deal with now! Depression often goes right along with epilepsy.
Some antidepressants do lower the threshold and allow more seizures. Has your neuro worked with the psych to find the best meds for you?
A seizure every night is a lot! My son also has most of his seizures in sleep.
Have you looked into the vagus nerve stimulator at all? You might ask the neuro about that, it helps many with seizures and can also have a real positive help for some with depression....
My heart goes out to you. You are dealing with so much. Please keep pushing docs to help you!