When this game was on the Flash platform, now its Unity, there used to be an auto meter release feature which activated after about 20 or so seconds of holding the meter. I didn't know if that was still a thing in Unity so I tested it, it's not, in single player mode at least.
I've not heard of any instances where an opponent can control your player, but that's not to say it can't be done.
I would check your mouse to make sure it has a good battery or cable if wired. Now you're going to tell me that you play on a tablet. : )