A.R.
Honestly if you can go to the meetings you should. Sure, you can go it alone, but your weight loss will be enhanced if you remain committed to your goals with the assistance of your support group.
As far as eating goes, shop the perimeter of the store. This means stock up on fruits, veggies, lean cuts of meats and low fat dairy. Avoid most things in the aisles - they are processed foods chock full of refined sugar and junk, which basically means that they will satisfy you for a short period of time then you'll want to binge on them again. They do nothing but sabotage a healthy eating plan.
If you absolutely must buy the junky food, only buy it in small amounts and pre-portion it into baggies. That way if a craving hits, you won't overdo it on the doritos and you'll only eat one serving. Get a kitchen scale at Bed, Bath, and Beyond - you don't need to buy a super expensive one, may about $10-20 - and measure out serving sizes according to the package.
Make Sunday (or naptime) your cooking/prep time. Make enough baggies of snacks or food for the week, including snacks for your daughter. Set a goal to eat at least 5 fruits and veggies each day. Have a piece of fresh fruit with each meal, have one veggie for lunch, one for a snack, and one for dinner. Right there, you have 6 fruits and veggies. Attempt to eat at least one green salad every day with either lunch or dinner. Also, try to eat 5 smaller meals (3 mains of breakfast, lunch, and dinner with 2 snacks) throughout the day. I give myself one 'cheat meal' a week where I can eat something I normally do not indulge in. I also eat pizza every Saturday - 2 slices with a salad, not half the pizza! My daily indulgence is a dark chocolate Hershey kiss. It is only 25 calories and (as I justify it to myself) has flavanoids and antioxidants good for a healthy heart.
If your daughter has a sweet tooth, make it healthy! Do ants on a log - spread celery sticks with peanut butter and top with a few raisins, make smiley face muffins or mini-bagels - toast a whole grain muffin or bagel, top with peanut butter and sliced bananas in a smile. You can still satisfy her sweet tooth but in a healthy way.
Feel free to PM me for other healthy tips and tricks. A while back I dropped 45 pounds by changing my eating and exercising. I refuse to use any goofy, gimmicky, wacky products or so-called 'cleanses' nor do I cut out food groups or take pills. People ask me what supplements I take and I tell them food - it's the greatest supplement out there!