Sometimes Plan A isn’t the right plan. Or it’s a good plan, but you’re not ready to really commit to it. Or the basic idea is a good, but it needs to be adjusted to work well for you.
That’s OK. Just keep working on it. Ask yourself what’s working and what’s not. Be honest. Maybe set it aside for a bit and ask again later. Do some reading. Ask Google. Ask friends or family, if you can. There are lots of ways to be successful, and sometimes that means rephrasing the question or reframing the (current) goal. Find something you can succeed in that points you in the right direction. And then move on to Plan B!