I talk more about how to use Uworld in my other post, but just to reiterate, I recommend starting Uworld questions after you’ve covered a specific topic.Refer to my other post for how to incorporate Anki into your step studying. I also used the comprehensive Zanki deck. Pepper is a good one that covers Sketchy material. I recommend the Lightyear to cover the B&B material.
When I started thinking about studying for Step 1, I knew I wanted to start preparing well before my dedicated period.