I actually got this idea from Dr. Becky, shout out to her 🫶
Confidence is always seen as being this big energy person, but that’s not true. Confidence is about being clear about your wants and needs, even if that’s taking time to figure it out. Confidence is knowing you've got your own back.
Perfectionism is a beast. I work with a lot of kids with it. Firstly, work on frustration tolerance. Have some mantras for yourself to regulate when things inevitable go south. Since you’re an adult (I’m assuming), you can do a bit of work looking at where this comes from. It’s a part of anxiety, and feeling like your worth comes from doing things right. In a lot of my personal work I’ve found it very helpful when I’m being hard on myself to speak to myself like I’m a child. You’re not going to verbally beat the shit out of a kid for not getting something right, are you?? You’d give them empathy and support. You need to learn how to do that for yourself. Thus, talk to the younger version of you.
While you could learn confidence by doing some of what other people are suggesting, I suggest seeking out some professional support for the perfectionism. That’s a heavy weight attached to you that probably need some outside support to loosen.