Sticking to a diet is hard to do. On most 'normal' diets you won't get hungry. By normal I mean you eat 3 meals a day with a couple of snacks during the day and you have to drink tons of water, that is what really fills you up. You may slush around all day but you won't get hungry.
There are many diet plans. There are the 300 pages or more diet books and there are the diet groups that meet at least once a week. Then there are some that will have meals delivered right to your door. The basic plan in these diets is each day eat 3 healthy meals, have a couple of snacks, and drink lots of water. Next you have the diet pills that come with a diet plan, 3 meals, a couple of snacks, and lots of water, plus a pill or 2 each day.
Let us not forget the fad diets, the cabbage soup diet, the boiled egg diet, the grapefruit diet, just to name a few. These diets don't last long, you either give up or pass out. Oh yeah, you do lose weight with these diets, but you also gain it back in a hurry, plus some.
So if you are thinking about starting a diet plan, choose carefully. Frankly in my opinion, one of the ones that meets once a week is the best. You get the support of all the rest of the group, you get to meet new people, and you get some new ideas for meals. These kinds of diets teach you how to live with a food plan, not a diet, but a way of life.
So until you decide which diet plan you think you can best follow, try to eat 3 healthy meals, a couple of snacks, and drink a lot of water each day. By the time you figure out which diet you want to tackle, maybe you will of lost the weight and won't even need a 'diet', because you will of found a 'diet' on your own, except you now call it a food plan for life.