How to create a redirect to point to the user's id? I'd like to create a redirect so when the user hits mydrupal.com/my-account its redirected to mydrupal.com/users/3

I'm using Pathauto and I know I can go to admin/config/search/path/add to add the redirect but I can't get it to point to the user id as variable. For instance, in the existing system path option I thought I could add users/[uid] but that didn't work.

Any suggestions?
Instead of redirecting the mydrupal.com/my-account to particular user ID as mydrupal.com/users/3

You should redirect them to mydrupal.com/user which will lead them to thier profile page if the user is logged in.