Hi there - this is most definitely me. I started getting pain 2-3 years ago. It got the point where I experimented with wrist braces and kinesio tape on my wrists.

What works for me today -- almost never use laptop on its own. Pain comes back pretty instantly when using the trackpad and frequently moving hand from keyboard to trackpad in that confined space. When on a desktop with monitor (also don't like looking down at laptop - unrelated but hurts my neck after a short while) I have a regular mouse (a good sized Logitech MX Master https://amzn.to/2Ls5151) and then I have a vertical Evoluent mouse (like this but there are other vertical mice, like anker has one i think https://amzn.to/2OlXmTt ) so when I get pain I switch to the other mouse and that provides some relief. My RSI is mainly in my right wrist though.

I also do some basic stretches and weights here and there but think the biggest thing that has helped - using my phone less at night. I can instantly feel it the next day if I was up late on my phone for hours the night before.

I experimented with using a wacom tablet and didn't see a change in anything.