When someone tells you to stop “overthinking” and just jump into something, it’s terrible advice.
You’re overthinking for a reason.
Now I am of the mind that you should lean into what makes you uncomfortable, and if your procrastination is coming from a place of perfectionism, then by all means take a leap of faith.
But if you haven’t taken the next step because you don’t know what it is or that you don’t know what’s around the bend, then be OK with experimenting and working towards an outcome in a controlled and disciplined manner.
You never know, the thing you may be jumping into could be a chasm.