Decision Tribes.
In the same way that one goes to the gym with a buddy, create a small tribe of people to support better decision-making.
Find two or four other people. Agree to connect on a semi-regular basis. Share your wins, losses, and the decisions you took. Allow your friends to question your choices, offer alternatives, and push your critical thinking to the max.
Besides improving your ability to be vulnerable, you'll see improvements with your ability to accept feedback, offer feedback, and make better decisions.
Learning is better together.