Hey, I lost my mum a few months ago to secondary brain. I don't have much advice except know that it's okay to have good weeks and bad weeks. I've been very similar in that I can function quite well for a week to 10 days and then I just plummet and it takes about the same amount of time to get back up again. I find moreso that I can't breakdown when I talk to people about it, which is really strange and feels wrong. Hoping I'm still in shock. I'm 23 so I also don't really have anyone my age that gets it. Here if you need to chat x