Can't remove this color

I've been bleaching + dyeing my hair since I was 15 (approx 5 years now) and during that time I've done every color besides the 2 colors I want right now. I would habitually lighten my hair and have it green, blue, or red, and then I'd dye it all black and leave it for a month or so---then bleach it again. I never dyed my hair all red before, just parts, and as usual I kept doing this.

Last year I bleach all of my hair and dyed it "crimson", which was a very bright red. It was okay. But it was staining my pillows and upkeep was annoying. SO I dyed my hair black. What next? I bleached, of course....but... my hair didn't lighten to the brassey-ish that it always did before... it was pink! My hair has been bleaching to pink, besides my roots.

The irritation is this:

I've wanted to see what I would look like with blonde hair for such a long time. I want to try it! But my hair turns to pink when bleach touches it and I don't know how I can "tone" out the pink, or even why it's doing this. I also want to try lavender because (why not?) my hair was pastel pink in 2013 and I kick myself for not using that super lightened hair with purple dye. ugh.

I have a record of bleaching more than I should in a short amount of time. Not twice a week, more like twice a day when I get anxious. It's probably that my hair is experiencing limbo but it feels okay and my split ends are minimal... What can I do? *anyone*