Confidence comes from doing the work
What is it that you want to feel confident in? Practice that thing until you feel confident. You won’t feel authentically confident without the reps.
What is helpful on your journey to confidence is confidence that you will become confident. This means that even if you feel awkward, scared, silly, or messy as you learn, you can bring a sense of ease to all that, knowing the confidence will come because you are putting in the work.
Where do you need to put in more effort to gain more confidence? Where do you need to have more confidence that you will become confident?