Hair Dye Answers

I have naturally light brown hair but I have dyed it dark brown, which was a huge mistake. Two or three weeks after I dye my hair dark brown, it always turns red-brown. Eventually it turns orange. I need suggestions on how to dye my hair back to my natural light brown color without turning it orange. My hair isn’t damaged at all, it’s just the wrong color. May I note that every time I reattempted to dye it back to dark brown, I went to a professional stylist at a salon & the outcome was still the same. In the past month, I have spent nearly $150 to fix it, but my hair now seems beyond repair.
Does anyone know what would happen if I bleached my hair, & then dyed it light brown? To get this done, I would go to a salon. I just don’t want to waste more of my money to have the same thing happen again.
I’m open to anything!

Can I bleach my hair overtop of already dyed hair (I did it 2 months ago dark brown) & then after the bleaching, dye it a more realistic, natural blond? I have bleached my hair before, I just don’t know how it would turn out overtop of already dyed hair? And then if the blonde overtop would change anything?

I’ve been looking around online to see how to bleach parts of already mid-blonde hair. Every website I’ve seen talks about how to bleach a darker color to blonde, but what about already mostly blonde hair?
I’m going to dye the bottom layer of my hair blue, but I’ve heard that it can turn green if you don’t bleach blond hair.
Can you guys help?!

About 3 months ago I dyed my hair dark brown to cover up my outgrown hilights (my natural color is brown). I used Clairol Natural Insticts in a temporary dye. Thing is, it’s lightened up a little bit but it’s still totally dark after 3 months. Would I be able to get my hair dyed blonde now?