I think this is one of those things where you get the most benefit with the least cost to your lifestyle by focusing on the ~80% primary contributors - whatever

I think this is one of those things where you get the most benefit with the least cost to your lifestyle by focusing on the ~80% primary contributors - whatever those are for you. For example, sugary drinks. No need to avoid ketchup or peanut butter with sugar and such, as those probably small contributors overall, and working around them is tough. I'd suggest simply observing the sugar in various foods that you eat without judgement, and without a specific plan to cut them out. Just observe. Then if you think you're consuming too much overall, get rid of the easiest, highest-sugar ones first and see how it goes.