I love seeing people who are motivated enough to see a change in their life. It keeps me motivated to improve myself.

From my experience (2 years of body weight training + 3 years of weight training) you don't have to workout daily to see the results that you want. Just increase the intensity of your workouts and (as you mentioned in your post) improve your cardiovascular strength in order to raise your fitness standard.

I really suggest you try body-weight training for additional benefits. I recently wrote a blog on body-weight training. You should check it out:

https://steemit.com/fitness/@mujtabazahmed/why-body-weight-workouts-are-worth-it

Keep up the good work!