Help me find blonde again!

OK first question:  do you realllllllly want to go back to blonde or do you want to keep having fun colours in your hair?

(It can be done at home for a tiny fraction of what salons will happily charge you and can last for weeks or even months with proper care, without cumulative damage)

There are many ways to fade hair colour out, you're on the right track with washing it hotter than usual - have a read of this thread or look for the bleach powder, shampoo & oils method - but if you want to go back to your base colour quickly you could go right ahead and use a colour remover (not colour stripper, that's damaging).
Pretty much all fading tricks are drying to the hair so you'll want to follow up with a nice, quality, silicone-free conditioner or hair mask.

Np, I don't "really" want to back to normal, but I am pretty low key and maintaining colorful hair is a lot of work for me, I've realized. I've only done box dye hair color to myself once before , so I worry about how good/bad a home dye job would turn out.

If I attempted to dye it at home, with partial new growth/partial old with color/bleached locks, would it come out looking janky? I work in a professional setting so while they're ok with my crazy hair color, I don't want it to look bad, either.

Thank you for replying!!

Most people on here do their own colour, and most came to it as complete novices but learnt as they went along, there's a lot of really useful info on here that can increase your knowledge base and confidence really quickly if you have a read through.

I recommend that you read the tutorial on how to do a bleach bath so that you are able to touch up your roots yourself. I have naturally fair hair and found that I only needed to use a 10 vol developer in my bleach bath which really didn't cause too much damage at all (with your hair having a natural red tint though it may not lighten as easily as mine which is very ash).

There are some really excellent dyes you can use that are really long lasting. I recommend the Special Effects range (I used to use their reds and they lasted a good 6-8 weeks!) but Directions and Adore also have some lovely shades that are really long lasting.

Don't forget that topping up your colour with direct dyes is not damaging so you can do it as frequently as you like, and if you just bleach bath your roots each time they grow through then each band of hair is only going to be chemically processed once, which is healthier than repeated lightening all over.

If you're willing to put in the effort into learning to do it properly then you'll be able to create some really great colour effects at home (my hairdresser when I had the bright red used to say she wouldn't dream of asking to do my colour herself as she wasn't confident she'd be able to get it as bright and even as I did at home!)