It can be misused and become an addiction. BUT I took it every day for years and never had a problem. My brother takes it as part of a drug rejimen for deep muscle cramps, to help him relax very deeply, and he's take it for over 20 years, still no problems.
I think that each and every drug can become a part of our dependency if we let it. I know that when I started feeling better I decided to do Klonopin more as a PRN instead of 2 per day.
I carried around in my purse for years, the same bottle. I know I would have not taken it because I am too neurotic about meds being too old but it was like my own lucky rabbits foot. I had it so I would never "need" it.
I think if your doc wants you to take it then you should follow those directions very well. If you start feeling better talk to them about taking a bit less each day.
Once you have worked through your anxiety issues you will feel better and be more back to normal. I'm not sure I'll every feel 100% the same as I did before panic attacks but I can cope and function just fine.
So take the meds. Klonopin is sort of in the same family as Valium and can become an addiction so do be careful and don't add more meds to your day without making sure the doc says to do that.