20 times in one month holy sh*t.
Um, I'm not a professional hair expert or anything, but in the case that i lost my way like you did, i would immediately shave it all. At the very least a very short buzzcut, provided the hair left isn't a different color. As your hair grows back, literally pamper it with hair care products and treatments (well maybe not pamper, but shampoo every week or two, and condition every 3-4 days). Check your hairs porosity, and if it isn't low to medium, don't mess with it. If you follow this, I believe by January it'd be okay to start messing with your hair again.
Idk what color you're trying to get, but I would suggest bleaching once or twice at most, and then either using a box dye or a semi-permanent dye to get what you want. I would suggest a semi-permanent dye, since there's more options and it's easier to shampoo out and change.