Mom with experience, can you tell me what we need to accomplish before…

Mom with experience, can you tell me what we need to accomplish before the year is up? We're currently 3 months in. On mixed feeding. According to pediatrician recommendations, we drink vitamin D, and still using Isico baby for colic, water (though it doesn't always work out), at 2 months old we went through a massage course recommended by a neurologist for prevention. I'm afraid that something might be missed or not accomplished. Doctors don't say anything unless asked. And I also don't want to overdo it.