Please know that these thoughts and feelings are perfectly normal. Now try and ease your mind, and eliminate your fears about termination. It won't happen until you are ready, and you decide. Even after you have all your problems solved (sounds like a great T, btw) you can still see him to stay ahead of day to day issues for as long as you need to.
Taking advantage of him? Ok, let's look at this from a totally non-personal view. The T chose this career for many reasons, one is to help people. To be able to do this, he has to charge a fee. You are paying, or seeing that he is paid, for your sessions. You are being helped by these sessions. He's helping you, he's being paid. Sounds like the plan it should be in that respect.
You won't progress in therapy if you are worrying about having to stop therapy. So, as soon as you can, dispel those fears and move along. (((hugs))) If you can't do this on your own, then have this conversation again with your T. He'll understand, and be able to help you realize it's all in your control.
TC