Sorry, I really did not mean to offend you but it's a general impression I get when reading some newbie's posts. I might have been wrong in your case.
I think it's a good start to go for a gliding lesson but do not make it too obvious that your motivation to start gliding is to get your hands on that tug plane job. Your primary motivation is to get up in the air as often as possible as aviation is what you breath, what you need to be happy. The rest will come along.