Hey babygurl! Just to echo what mandalinn said, one of the reasons dieting is so confusing is because different foods are "good" and "bad" based on what plan you are on. There is so much conflicting information about food and nutrition that it's difficult to say which foods are universally "good" or "bad."
For example, I don't eat processed foods but I do eat natural sugar, so fruit is always "good" for me. Some people think sugar is the worst thing we can put in our bodies and think fruit is only sometimes "good," depending on the quantities and type of fruit. Who is right? Unfortunately it's unclear- there's a lot of evidence for and against each argument
Calorie counters usually don't think of food in terms of "good" and "bad" but high calorie and low calorie. This is the nature of calorie counting-- everything is okay as long as it fits within your calorie count.
I hope this helps. 3FC is a wonderful resource- I think many of us (myself included) came here with little knowledge and have learned a great deal from others on the board. I do hope you stick around and ask more questions so we can all learn from each other