I Need New Hair Colour

I'm in a bit of a quandary as to where to go next with my hair. Below is my most recent hair colour time-line. Starting at the top left, I mixed a random concoction of maybe half a bottle of Manic Panic Ultra Violet (purple) with Bubblegum Blue and Lilac by Crazy Color. I don't know exactly how much of each I used, I was making it up as I went along until it looked like I had enough dye in the bowl (I'd guess at half or 1/3 of each bottle). It came out a beautiful bright, vivid, purple, faded to violet, then a dusky lilac until it's practically grey. I thought it faded pretty fast. I'm down to washing my hair as little as possible (dry shampoo is my BFF), but even without washing, it still fades week by week. Although when I look back it was the middle of April I first coloured it, then by the end of May (top right) it was so pale but my dark roots still weren't noticeable, so I touched up the colour (bottom right) without needing to bleach it. Again I just randomly mixed whatever I had left in the cupboard with the majority being Ultra Violet. Which has lead me up until this week (bottom left) where I've hardly any colour left, there's an ashy yellow tinge in places and my roots are showing.
Earlier in the year I'd been dark but bright blue (below, top left), which I made by mixing Atomic Turquoise with Ultra Violet (both Manic Panic). I think I used 2/3 of AT with 1/3 of the UV bottle. This was a really different shade for me because it was quite dark. As you can see from the photos below, it faded to a brighter blue, then teal, turquoise, then the blue left and it turned more green until it faded lighter. This was very long-lasting and I was already accustomed to the 'turquoise to green' process from my months of solely using Atomic Turquoise. However having been blue/turquoise/green since the end of last year (and turquoise for ages before that), I wasn't keen to revisit it, hence my decision to try the purple out.
Now I'm just so undecided with where to go next. Usually I'm led by my mood or get something in my head that I must try, but I'm just not at all sure what I want. I'd kinda like to try something different again but I'm running out of colours I haven't already tried. I'm trying to think what shades I could buy to mix into a unique colour, but I feel anything is just going to end up as blue, turquoise, green or purple and I'm back where I've already been. I'm still banned from bringing bright pink into the house (the same would go for red), so what could I do? Anyone have any suggestions? I have to remember it's summer too, so perhaps I wouldn't want anything too dark. Generally speaking I prefer the colour purple to blue, although I loved how long-lasting the blue was in my hair and actually really liked having blue hair despite not being keen on the colour. Purple tends to fade quicker on me, but I think they are so pretty. I'm preparing to bleach either Sunday or Monday and at the moment I only have a tiny bit of Ultra Violet, half of Bubblegum Blue and 3/4 of Atomic Turquoise left. So do I just combine those and use up what I've got (which would probably just end up being turquoise) or order something and hope it arrives in time? I am open to ideas ; )