For me, for a long time starting things was easy.
But I could not finish what I started.
So I ended up with lots of unfinished projects, no visible success and lots of time and energy wasted.
Thankfully I learned how to finish things I started, early enough.
Even after starting many important projects and finishing them, like writing a book.
I’d say it is tough.
You know what’s tougher than starting and finishing one-off projects.
Continuing with long-term projects.
The only thing that can make you continue with them is knowing what you like and don’t like and being confident in your choices, by thinking through them.
Once you know it, you can choose to work on only the things that you truly like and increase your chances of continuing and succeeding with them.