My champion moves with right click, not left click. Its so confusing and frustrating.

Basically, I think my mouse options on league are backwards? to move my champion, I have to left click. to open shop I have to right click. I haven't played league in over a year. I have a new laptop today. last week, I also bought a new laptop, hp. I installed league on that laptop and had same problem. new laptop now and same problem.