Don't worry about it. I was there too, i thought i couldn't use an instructor because i didn't have a clue about flying fields, until i found this site. Its really great, and every one just wants to help you. In this case, 3/4 of them were just mocking you, but thats how it goes. There were many posts like this before and frankly, people just get tired after a while of seeing them over and over again. Search "Teaching myself to fly" in forums, and you'll find alot of hits.