DIY distortion pedal help
The input stage makes little sense for a guitar pickup input.
It needs to be AC coupled and then the amplifier side biased to half supply.
Note that guitar pickup input stages are somewhat special as they need to provide a certain load impedance which also means not just resistive but capacitive loading too. Due to high gain there should usually be some RF suppression.
There should be plenty of examples like guitar amps with schematics how to build a guitar input stage, but defining which is the best way to do it depends on case and opinion.