3 days ago I dyed my hair blonde from darkish brown, I don't like it, so now I want to go dark red. I just want to know if it is going to work or if it will go bright red?

It will turn pink! And not a nice pink either
When you do dye it red
You need to dye from the bottom up when covering blonde so the ends will be as dark as the root
You will need 2 colours
You will need to wait at least a week before you colour again your hair will be real weak from the blonde