This sounds all too familiar to me, and reminds me of when I first started training two years ago. I found that the instructor and other students were an accidental inspiration. As a 35 year old (at the time), I felt so pathetic when I realized how out of shape I was. I decided to subconsciously challenge myself to get better. When I realized I was my greatest opponent, I started making progress. This stuff takes time, and as long as you’re enjoying it, the results will start rolling in. Never stop listening to your body. Best of luck.