Slowly start cutting down on the amount of processed foods and junk food you eat, and eventually cut them out completely. Try your best to eliminate sugary drinks because they will add up your calories fast. Only water.
As for what to eat, what i did was instead of eating what i usually ate for a snack i filled myself up on fruits and veggies and allowed myself to eat as many fruits as I wanted, and I still lost the weight. Though be warned, fruits are not void in calories, but they are low in calories and much better than what your used to eating.
For now, just try to pay more attention to what you eat and how much your consuming, learn to pay attention to the nutritional bar and choose foods with the least amount of sugar, cals, etc.
You don't want to go too far under your BMR because then you will lose a significant amount of muscle alongside the fat.
As for the workout, i am not completely sure as to what you should be doing, but here is the FBW i am doing:
A
squats
bench
rows
iso-u choose
B
deadlifts
chinups
dips/military press
iso-you choose
workout 3 times a week, and alternate workouts A and B. dont do workout A or B twice in a row