>>13551773I picked one up. It's alright for training, but you need to make sure you sit up straight when you are at your desk, and make sure you are standing straight when you aren't. Set an alarm on your phone to remind you every n minutes.
>>13551785The way you quit anything is by stopping that action and then not doing that action anymore. There is no secret other than that. If you have no willpower, pic related is a starting point. If its ruining your life, replace one addiction with a different one. An addiction I would recommend is self-improvement.