I think you may be missing the point of spinning because it's new to you. Maybe what would be better for you is to find a box that's high enough to rest one foot on, then get into a trainer (or on rollers, whatever you have) and just focus on developing your pedal stroke technique. If you use the method I explained to you, you should be able to feel more muscles activating through your overall pedal stroke. Simply focusing on pulling and pushing will not activate more muscles. I know a lot of people think it does, but experts say otherwise.
It does take time to develop spinning. It doesn't happen overnight, and it won't happen over a month. You really do have to dedicate yourself to learning how to spin effectively. I used to be a masher myself, and it took a lot for me to decide to decrease my gears and learn to spin. I initially lost a lot of speed, but I'm finally noticing that my speed is picking up a lot, especially over the last year.
Give it time. Practice. And do what I recommended for you in a different thread.
Koffee