My hubby is an elder, he's a good man. Does everything he should and yet he still says he doesn't feel good enough. He's always beating himself up over the things he gets wrong. It hurts me to see it. I want to shout at him to get out of this religion! Then he'd feel better. But I know he wouldn't, he'd still carry the guilt around with him. That's the sad thing about it.
To be free of it you have to tell yourself there is no reason whatsover to feel guilty about anything. Why should you? Who made you feel that way? What do you feel guilty about? Carrying a load of guilt is what we've been made to feel, whether we do things or don't do things. We can't ever feel happy because we've been made to feel that way.
You have to break that cycle before you can ever move on and feel happy with your life. You don't owe anything to anyone. Just be true to yourself. If people don't accept you for who you really are then they are not worth having in your life anyway.
I hope you can find a way forward. Look forward to graduating in your job and use it as a fresh start to a new you and a new life. All the best!