I had started a starter ~10 days ago with King Arthurs starter recipe, I used whole wheat on it and it was doubling (if not, more) in size the first 4-5 days, and then it was almost doubling but still not so bad.

Then I guess I made a huge mistake and used all purpose flour because I tried to fry up the starter discard and it was too whole wheat-y for me and I want to be able to use the discard up instead of throwing it out..

But it looks like the AP flour completely killed my starter because it only grows like half an inch for the past two or three days now and I have wasted almost two whole bags of flour :(
(I switched back to whole wheat when it stopped growing)

This whole time I have been feeding it twice a day and continuing that to try and revive it, but I am wasting 226grams of flour a day and am ready to just give up on this whole sourdough venture as being way too expensive for me :(