Yes we all feel this way as well - from time to time - you are not alone.
We buy them toys, gym, new cages. We introduce new foods - we hang out & play with them. They call to use, fly to us, eat our non-edibles [books] - they're pests in every way, cause they think of us as family.
Then there is their form of discipline

- way more aggressive than we'd ever do - very confusing some times. + Their inappropriate love objects.
Lots of us have struggled with, 'are we doing enough?' & 'are we enough?'
I think sometimes that's where MBS starts in many cases. Are you thinking of getting another as a bird mate??? We're going there - we started to think we weren't enough for him. We had the same problem when our 2nd cat died & even when our 2nd fish died [long story]. I know a lot of time we are plenty of company.
I do agree with everyone here when they say I've yet to see a more pampered bird - Pita is adorable & always looks wonderful. + Bee has confirmed your Mom abilities - you do a great job.
Remember [how could you forget!] you had a big car accident not very long ago - you are still healing - mentally & physically - that must have some impact[no pun] on your self-esteem - but please give yourself a break.
Psssssst - how's the hair growing back? - now that really hurts a girl's esteem!