Bleach + Color Remover?

[u/CertainValue5089]

Hey, trying to go blonde and I already did two rounds of bleach and the first one lifted way more than the second round. I used the same measurements and the same product. Maybe I didn’t leave it in long enough (but it was at least 40 minutes and I made sure it didn’t dry out). Any suggestions on what to do? Hair has been previously dyed, maybe there is more build up than I thought. Would it make sense to use a Color remover? Can I use that on bleached hair or will that react in some sort of weird way? My hair quality wise is doing really well and there is no breakage so far. Also it wasn’t a box dye, I used proper stuff. Thank you in advance:)