[Discussion] I'm in my last year of secondary school, I just uninstalled a game I'm addicted to in preparation for exams in June, but I feel the need to reinstall for whenever I have 'free time'. Any advice?

The game is League of Legends and I'm sure some of you will have heard of it. I've been spending too much time on the game rather than studying so I made the personal choice of uninstalling it until late June, which is when my exams finish. However, I keep making excuses to reinstall it such as, "oh, for when I next have free time" or "oh, as a treat when I've grinded studying for the whole day". That game is toxic for my education. I know I won't do as well as I can in terms of grades if I keep playing it. Do you guys have any advice for me to change my mindset?