I understand this all too well, AnaK09.
I grew up a preacher's kid so I thought I had to be perfect for the church's sake and his sake. I didn't tell anyone when I was struggling because I feared that their response would be "Christians shouldn't feel that way" or "Aren't you a preacher's kid?" I have a twin, and back then, I thought she was perfect and so I always felt that I was falling short. I was a good student and got called a "Teacher's Pet" or "Ms. Goody Two Shoes".
But there was no need for me to feel any of that. I should have understood (and do now, at least I'm learning to now) that Christ is who I should imitate. We shouldn't feel pressured to be within anyone else's standards besides Christ's. It's really hard to actually take hold of that in our hearts and minds when we're bombarded with the pressure of expecting to never fail. I would encourage you to maybe find some Bible verses that you hold dear to you and memorize them, and when that box that people put you in feels like it's getting smaller, just repeat those verses in your head to remind you that you are not in their box. You are Jesus' child.