You can always go back.
One of the things that I don’t think is often considered is that when you leave your comfort zone you can always go back if things don’t work out.
For example if you make music and usually just keep it to yourself, try putting it out there for people to hear. Sure you might be nervous and it’ll take a bit of courage but if it doesn’t go well you haven’t lost out on anything.
And if you lose that feeling of courage you can always go back to keeping your stuff to yourself again, you can always go back to your comfort zone.
However, on the flip-side you can keep trying because good things take time and it’s like Ziglar once said ‘Anything worth doing is worth doing poorly until you can learn to do it well‘.