Red to blonde? Hair help!

So, my hair is naturally a dark blonde.

I put a black dye on it months ago, which faded to a dark brown kind of colour.

I then put a dark red over it. So its currently very dark red with dark browns under it.

I’ve now decided I would like it light blonde, like bleach blonde as light as possible, but I’m not sure if that would be possible now I’ve done this to it?

I dont have the money to go to a hairdresser, so want to do it myself at home.

Anyone got any advice on how I could get it really light blonde? Would I have to just keep bleaching and toning? Use hair dye removers? I dont know where to start or what to use!

If i do attempt it, I will cut some hair off and test it all first. Just want to know if anyones got any advice on whether its even possible do to at home? Or if I just need to stay dark now ☹️