Vegetarian = NO FISH (or other meats) NO EGGS AND NO DAIRY.
Lacto Vgetarian = NO FISH (or other meats) and NO EGGS -- ONLY DAIRY
Ovo Vegetarian = NO FISH (or other meats) and NO DAIRY -- ONLY EGGS
Lacto-ovo Vegetarian = NO FISH (or other meats) ONLY EGGS AND DAIRY.
VEGAN = NO FISH (or other meats), no eggs, no dairy, no honey, no silk, no fur, no leather, no wool and no animal bi products or other things made from animals (marshmallows, jell-o etc)
You will find that most food that contain animal products aren't good for you anyway. You DO NOT NEED FISH, EGGS OR DAIRY in your diet. It's SO EASY to do that you just have to want it bad enough. Think of all the lives you will save by not having dairy, eggs or meat--including yours.
If you want to be a REAL vegetarian cut out THE FISH because FISH is STILL FLESH!
Okay, I am calm.
Welcome to VB
There are many things you can eat through the day ESPECIALLY protien filled. Snack on lots of trail mix--it's good, its filling, its full of protein and its good FOR you. Also eat a lot of your favorite fruits. You will find you will eat more because of portion size but that is totally ok as long as it fills you up. I would suggest a LOT of whole grains and oatmeal as that has a lot of fibre/will keep you full longer. (AND DRINK LOTS OF WATER)
These are all things that I do to stay full
GAH. EDIT 2:
Also, most of the time you will find that when you go to eat its not because you're actually hungry. Ususally (depending on the person but MOST people) eat when they are bored or not STUFFED. Wait until you are really hungry. Have 3 meals a day with a small snack in between. Also eat fruits 1/2 hour before any major meal.
If you aren't ready to be vegetarian don't push it. Do research first.
I reccomend reading the book Skinny ***** by Rory Freedman or Slaughterhouse by Gail Eisnitz