you have to understand, people are getting frustrated because they are telling you what you need to know, but you seem as though you refuse to listen. There really is no point in arguing w/ you; you will do what you want. but, you should realize that there are some very intelligent people here who could help you if you will just listen to that they are saying.
anyways, if you are scared about gaining a lot of fat (which obviously you are) then no, I would not just go out and eat anything. continue to eat clean, but you should highly increase the calories and amounts of food that you are eating. I was kind of in the same boat are in a couple months ago. I was just starting out in weight lifting, and I knew I was doing all of the exercises right, but I could not realize why I was not gaining weight. I finally understood how much food you really have to eat to make your body grow. It's hard to get used to at first, but continue to plug away at it, you will see results eventually. This past month or so I have been just chowing down, and my growth has practically gone through the roof from what I had seen at the beginning. So, like everyone else, I would tell you to continue to eat a lot more, train hard, and your hard work will eventually pay off. Good Luck!