Very few people feel comfortable making mistakes at work. They fear that they will lose the respect of their managers and colleagues, and that they will tarnish their reputation.
Yet to remember, mistakes are often the best teachers. You and your colleagues will not learn something new if you only do things you know well. Create a mistake-making culture. Encourage your colleagues and yourself to take risks. Help them and yourself to accept your gaffes and share what you have learned from them.
Of course, there are times when blunders are too costly but not so often. And for those less mission-critical times, ask your colleagues to approach problems just not as experts but as learners to.
You will make a lot of positive results!