Losing weight

Eat foods that you like in portion sizes that fit your goals.

Get plenty of fats & protein for healthy and satiety.

Get plenty of fruits & veggies for the micronutrients.

Fill in the rest of your calories with carbs, sweets, and treats as you see fit.

There are no foods that you must avoid, just like there are no foods that you must include in your diet. You may find as you progress that there are some foods you don't consider worth the calories, but that's going to be highly individual. Start logging for a few days and make changes as you go along until you find what works best for you.

Definitely take some time and read through the "Must read" posts stickied at the top of each forum section. Those have tons of good information to get you started.