I want to start off by saying, “Everyone makes mistakes, that's what makes us human.”
You're new, you are going to make mistakes. Your senior staff is going to make mistakes. Sometimes you're going to get the sharp end of other people's mistakes. The one thing to keep reminding yourself is to not let that bring you down.
Since I don't know your situation completely, I'm going to try to be as objective as possible.
1) Most firms have departments. Each department has different partners, managers, senior associates, etc. The end result is a tax return. But there are 50 million ways to get there. Also, every manager/partner has their own way of supporting documentations, etc.
One thing I learned the hard way is that everyone does things differently. My best advice is to ask those who are 1) in your same department or 2) a staff that work closely with the supervisor and understands their preferences.
Perhaps the person you asked just doesn't work in the same industry/department as you. Maybe what they said is how their supervisor likes things done, but it's not how your supervisor likes things done.
Also, forgive the senior staff. Give them the benefit of the doubt, because a big part of being an accountant is teamwork, and you're not going to go far if you hold it against them. Once again, realize they make mistakes just as much as you. Actually, if I were the senior staff, I'd want the new staff to tell me if I did something wrong. Even partners make mistakes, and if it's not someone below them pointing it out, who is?
Finally, you'd be surprised how hard it is to try to teach others what you know. That's why I think the senior staff just wanted to be helpful to you (how can you hold that against them?). There's a reason we're not teachers, we're accountants, haha!
2) The past is the past. You said you received a handful of minor changes — well, the best thing going forward is just to make sure you're improving and not repeating those minor mistakes.
You can always prove how capable you are. A highly valued asset is the ability to take in constructive criticism, thank the supervisor for them, and SHOW them that they're heard.
I know that project probably brought you down a bit, but think of it this way, the next big project you do for that same supervisor will be so much better.
Growth is highly valued… And if you think of your situation from another point of view, if you can wow them in your next assignment, they're really going to notice since the difference in quality of work will be pretty significant!
Anyway, just stay positive, hope I helped! 🙂
BEC - PASS (79)
AUD - PASS (63, 71, 74, 74, 83)
REG - PASS (88)
FAR - PASS (58, 89)
Becker for all + FAR 10 Point Combo