I'm migrating from a late 2012 to a new 2020 MacBook air and having difficulty right clicking. Sometimes when I push with the side of my right thumb:

1. a light touch works perfectly and I feel some haptic feedback or "give" or "click"
2. it feels solid and unyielding and nothing happens
3. I feel some haptic feedback or "give" or "click" but it's interpreted as a "left click"

I've try clicking around and making a map manually but I get strange results and I'm thinking there is something more complicated going on that I don't understand. After eight years of using one trackpad it's all in "muscle memory" and I'm struggling now that I have to think about it. I'm so tired of the wrong thing happening that now I'm afraid to right click.

I think if I could see a map of the track pad or better yet some engineering-like testing of the spatial variability, that might help me to interpret what I'm doing wrong and how to improve it.