Collaboration is required. But teamwork only works with clear roles.
You want it done well, so you do it yourself. That is not standards, it is not trusting anyone with your name on it.
The work needs other people and you keep doing it yourself. It is faster, you say. It is also how nobody else ever learns the job, including how to help you.
What are you doing alone that would be better done with a clear division of roles?
Hand one piece to someone this week, with a clear brief, and do not take it back.
The money project needs a team: an advisor, a partner, a second opinion. You are treating asking as an admission.
Who could help with this that you have not asked because asking feels like not knowing?
Ask one of them this week.
This relationship is a piece of shared work, and you keep working on it as if you were the only one on the job.
What role have you never let them take in this?
Give them one real responsibility this week and let them do it their way.
You are deciding alone something that will be lived by several people. Consulting them is not weakness. It is information.
Who will have to carry this decision who has not been asked about it?
Ask them this week before you decide.
You want to grow and you want to do it privately, without anyone seeing the clumsy middle. The clumsy middle is where the help is.
Who could see you not being good at this yet?
Let one person watch you practise this week.
The work has reached the point where it needs other hands: an editor, a collaborator, a critic. You are keeping it alone to keep it yours.
Whose skill does the work need that you do not have?
Ask that person this week.