Training with no targets is life navigating without a map.
So, the question here is should you break your goal into smaller milestones?
Yes, you should.
It will make you feel that it is more achievable, more doable, and you will be happier with your more minor achievements.
But above all, always aim for the big one!
For more tips, download my books or exercise videos available on this website.
Targets are everything in my opinion.