Is it hard to think of a topic to discuss?

Yes, most of the time I think it is

sometimes so when that happens I go and reply to discussions then if I thank of one I post it!

Just because we don't post discussions one right after another doesn't mean you don't have something to contribute. Take an idea from your local news, or international news, your pets, your parents or relatives. Your job can be a sourse of questioning. You life as fun as you make it can be your source of ideas for posing questions. Good luck with this!

Yes I totally agree that It is very tough to think of a topic to discuss but it does not matter that much because if I dont have anything in my mind to discuss, I would probably Respond to some of the good discussions started by others.