DownPat

There's nothing in a fill that will magically make you lose weight, unfortunately, and it often takes several fills to achieve optimal restriction. And yes, just 1 cc can make a big difference.
Please try to avoid eating a big plateful of food. Doing that can overload your esophagus and stomach and eventually cause your band to slip. If you're physically hungry between meals, have a small healthy snack.
The best foods to eat (with or without restriction) are SOLID foods because they provide the most satiety. Avoid soft or slider foods (milk, yogurt, cottage cheese, crispy crackers or chips, mashed potatoes, pudding, ice cream, milkshakes, Protein shakes, fruit juice or smoothies, scrambled eggs, anything pureed). Emphasize solid animal protein, fish/shellfish, soy/tofu, hard-cooked eggs, beans; non-starchy vegetables & fruits; and whole grains (brown rice, bulgur, barley, quinoa, thick crackers (like Wasa).
You're actually doing fine. You're making good lifestyle changes with better food choices and exercise. I know it's frustrating to be stalled like this, but hang in there!