I was about the same. Around junior high I was like, “wtf am I doing?” For me the first part was “under God,” that got to me. I had found it weird as a child even to say that and then I realized I didn’t want to say that at all. I thought it was strange when supposedly, we’re allowed to believe whatever we want. I never felt the connection or belief in the Catholic God (what I was, very, loosely raised under) and it started there. Hand on heart omitting , “under God.” Slowly it progressed to just standing and saying nothing. It’s probably been well over a decade since I’ve been in a situation to say the pledge, but if I were, I know I wouldn’t stand anymore.
I also, do not always stand for the National Anthem.
This was the first election, since I came of voting age, that I didn’t receive a voting pamphlet that told me about all the individuals running and where my voting site was. I had to go out of my way to look up my county’s ballot measures and to find my voting location. To say I extremely upset about this, is an understatement.