Find a nutritionist, a wls support group, a therapist, just start somewhere. Download an app for tracking food (Baritastic, myfitnesspal, LoseIt - all free), buy a new fancy water thermos, new sneakers, a journal for your feelings, clean the junk food from your cupboards, buy a week's worth of lunch food and divide it into containers...etc
Stop shaming yourself, forgive yourself, and move on, success can be yours.