I am scared to start my own project

Hello Devs,

The fact that makes me worry is if my project is scalable or not... and whether all the pieces of the puzzle will hold together in the long run. I am not confident with database design and code base and how it will work in the long run. Though I haven't faced any issues with design or my code.

But I think about adding missing features to my project at later stages will make the code unmanageable, for example, adding pricing plans. Because this is my personal project and currently I am the only one but I don't want to involve more people at initial stages.

I want to know how to get over this thinking... should I proceed and keep up with dynamic changes or I keep on researching until satisfied?