Grims, I can absolutely relate, though I was never as open and aware about it as you are.
I remember, when I was in grade 9, I made a friend who was into hockey, I lied and said I used to play in a league.
Well, he took me to one of his practices and told his coach that he should try me out for the team, right there and then.
They found me some equipment and put me on the ice, I was so terrified that not only my lies would be revealed, that I would make a complete fool out of myself but also that I would lose a friend.
Naturally, I sucked, failed horribly. I could have told the truth at any point and saved myself some embarrassment, but I didn’t. I rode the lie out to the very end.
I still made the team somehow and after a rocky season finished strong. But for whatever reason I didn’t play the next year, even though I wanted to. I was just too anxious of a kid.
That’s just one embarrassing story involving lies out of many, and I suffer for those lies to this day. The shame about that behaviour sticks to my spirit like sap.