How do you get over the thought of "I'm too scared to try and learn/do x because I'm going to be bad at it?"

@jorty Most things worth doing are hard, and if it's hard to do, you will be bad at it for a while (I'm a bad fiction writer, myself).

You just have to have good taste, and resign yourself to the fact that you'll fall short of your own good taste for a while. Listen to people who are where you want to be, and just keep putting in the good old-fashioned hard work, and you can't help but get better.