Pasta is processed. Beans are whole. Fresh vegetables are whole foods, as are most grains. The only way to avoid this is to find organically grown foods. Whole is not a rigid definition, it is part of a continuum.
Natural foods are better than unnatural foods, and whole foods are the best type of natural foods.
There is no absolute correct way to eat and it is unhealthy to radically change eating patterns. Add something for everything you take away, replace unhealthy choices with healthier choices. If you are addicted to coffee, start with less, switch to tea, exercise in the morning, eventually you will be stronger than the drug. Remember it is a process. Take time to notice how much better you feel every step of the way.