When to Cut My Hair

My hair continues to fall away, when washing it, brushing it, blowing drying it, or just running my hand through it. I feel like the cat when he sheds his fur everywhere. I wonder how many days I have before I need to have it buzzed off. It's still okay now without a hat. After drying my hair, I hairspray it to hold it in place a bit so it doesn't just become fly away all over the place. That seems to work for now. But it's definitely getting thinner all around. I'm thinking I have through the weekend and will probably need to see my hairdresser by Monday or Tuesday at the latest. Do I cut it really short or just buzz it like the military? I suppose it won't matter either way since I will be covering up with a hat or my wig.