I wanted to offer a few pointers to help you as you begin the new you.
First, start small. Make a few changes at a time. Sometimes people get excited, change a lot of things, get frustrated and quit. By changing a few habits at time you build in successes and less frustrations.
It is important to have ways to measure success that don't involve the scale (NSV-non scale victories). The scale is one small part of the equation and is very inaccurate at measuring success. Our bodies are complicated and don't always follow the rules. There will be times when you have eaten right and exercised and the scale won't move as much as you think it should. Look at your mood, healthy habits you are forming, how your clothes fit, your exercise as other ways of measuring success.
Also, don't look at this as all or nothing. We are human and we are not perfect. There will be days when you eat horribly or don't exercise. When this happens, forgive yourself and move on. One less than ideal meal (or a few days worth) or few off days of exercise is not going to matter over a lifetime. What matters is you keep moving toward your goal. Progress not perfection.