Hey there! My heart goes out to you for the difficulty you face in exercising. It can be so hard when you seem to be fighting your own body. Lori made a great suggestion of chair exercises. Also, you might find pulmonary rehabilitation useful. It can help you improve on whatever your current capabilities are, as well as teach you techniques for managing breathlessness and anxiety. Here's an article that talks about it in more detail: https://copd.net/answers/expert-answers-pulmonary-rehabilitation
For now, keep doing the best you can. Maybe you can take one extra walk to the bathroom, or simply stand at your seat and stretch. It's all valuable, and anything you do is worth the effort! We are here to cheer you on. Sending a hug to you today! -Melissa, copd team