I'm intimidated to start a solo campaign

Hi, I’m pretty sure I’m not alone when I say that one of the best parts of the game is making new characters and starting new campaigns.

But today, I was faced with the truth. I've been starting to plan out my new solo campaign for 2 days now and I realized I've been procrastinating a lot like trying to map out things even when I already have my essentials down. I could've just started to roll my dice but I couldn't cuz long story short, I'm intimidated to start because I have such expectations and I'm afraid to disappoint myself :<

What are your tips to avoid being intimidated/overwhelmed? I know some would say, "just start" and I could do that but tbh, I'd still procrastinate.