Seizures in Siberian Husky

I have 12 year old Siberian Husky, have had her since she was 5 weeks (yes, breeder insisted) she started having seizures when she was 3-4. Used to be every 6 months or so and just 1-2. They have been getting worse, doctors don't want to put her on mess, it's every month now and they last for 4-5 days having 6-7 or more a day in that time. I moved about 9 months ago and we lost our other dog about 4 months ago. They've always been together. It's changing her, she is skiddish now, she won't come in the house anymore. Last time she was in she got freaked out over a box and ended up running right through a floor level window. She keeps herself secluded in the basement where she has free roam in and out to the back yard and sun porch. But she will not stay around me for more than a few minutes. We used to be inseparable....I'm building a wall to keep her separate from the floor level windows. And close off the basement to force her to socialize with me... I'm starting to cook for her, beef, chicken and verges, no carbs and I'm concidering CBD oil, Or straight up marijuana if I can figure out how much and how to administer.... or am I just reaching, I've concidered of recently putting her down and feel really selfish for not.... she still has good days I just have such high hopes on the CBD oil, I've found somewhere to get it only have no idea how to dose it.....PLEASE HELP!