When I started out, I probably wasn't regularly getting enough servings of vegetables and fruit. I was going over on sodium fairly often. I was eating out a lot more. But I didn't try to go from so-so eating to perfect healthy eating in one step. Instead, I started tracking and focused on just one adjustment. First it was getting enough of carbs-fat-protein. Not the right balance necessarily, just enough. As I swapped in foods to get that balance right, I naturally ate better.
The SP tracker was the only "equipment" needed. I used it to plan as much as to track - entering foods before I got to the meal so I could see if they'd balance. This allowed me to adjust what I'd eat in advance rather than feel bad after eating and finding out it didn't fit well.