What's the best way to go from dyed red to white-blonde bleached hair?

i've been dying my hair red for over a year now, and i've decided to go light blonde. the problem is, i've used boxed dye, and it only lightened my hair slightly (to a strawberry blonde).

i don't have the funds to get it professionally done,

so i'm looking for some suggestions of how to make it work properly.

What's the best way to go from dyed red to white-blonde bleached hair?

ok go to a sally beauty supply and u beed to get the blue powder and a 20 vol processor then a tube of blue so it wont turn orange u will need to leave it on long enough in order for it to work do not take it off too soon then it will be very important 4 u to use a terrifc conditioner and shampoo any other questions ask at sallys there salon stylist too!!!!!!20 yr stylist here dont 4gat the blue tiny tube it only cost a Dollar and will stop the red!!!

What's the best way to go from dyed red to white-blonde bleached hair?

Sorry to say but i think if you want to it work then its really best to get it proffesionly done, or risk the chance of it going ginger or getting very damaged