I am pretty much just playing the nuts.
this is hardly a defensible reason for why you shouldnt be winning. it IS the reason you cant progress.

play fewer tables and start playing poker. that means developing reads, monitoring and adusting your own image (which is pretty transparent btw), mixing up your play of hands by street, attacking weakness with position alone, calling bluffs, betting marginal leads etc.

if everyone only plays their winning hands, we would all lose to the rake.