Feel free to experiment with baby steps. One big advantage is that if you start small, you can recognize how what you change (i.e., independent variable) influences the result (i.e., the dependent variable). For example, if you give up sugar, processed meats, and start exercising three times a week, all at the same time, and then proceed to lose five pounds, how do you know which of these events affected the weight loss, and by how much? It’s better to change a small habit, and then you can more easily track what is happening. Also, quantify both your changes and your results. Don’t just say that you’ve lost weight, but you’ve lost five pounds. Don’t forget to keep notes, so that you can remember what’s the most effective.