Thats a tuff question but I'll answer to the best of my ability. (a whole 35 days of experience! lol)
First you need to define your goals. For example. You want to lose 20 lbs in the next 5 months.
(Make your goal achievable, but also think about how your going to maintain your goal after.)
Then you need to figure out the number of calories you need to consume to lose the weight according to your goal. ie 500 calorie per day deficit will result in 1 lb per week loss. Too little deficit and you wont reach your goal...too much deficit and you probably wont keep the weight off after you reach your goal.
Then you have should look at your diet and make healthy choices instead junk foods or processed foods.
You should also look at making sure three meals a day are of a good macro....ie protein carbs and good fat. I eat 6 meals a day...three major meals and three snacks.
If you are working out, you may want to keep your protein intake at about 1 gram per lb...to protect from muscle loss.
Finally, lots of water.
For me, I have
-oatmeal in the morning. w/blueberries, maybe rasberries or raisins.
-100% Whey Protein shake 2-3 hours later
-Chicken breast with salad for lunch. 1/2 sweet potato and a scoop of cottage cheese
-snack of either yogurt and some almonds or rice cake with peanut butter or protein shake
-dinner small lean steak 6 oz with broccoli and a scoop of brown rice.
-snack lf cottage cheese (just cause I like it!)
Some days if I am still hungry, I make a tuna salad and eat it on some lettuce.
It looks like alot of food....but its within my limits.
So far, I'm down 5 lbs in 5 weeks. (Im also working out 3 days a week and feel like I have made some muscle gains)
Good luck in finding a suitable diet for your goals. Hope this helps.