It's definitely not good to play dota in the dormitory every day. You can realize this, which shows that you are a person with goals and ambitions, and want to change the status quo and not waste time.

There are many ways to change the status quo, such as going to school clubs to participate in activities, going to social practice outside school and so on. But the most important thing is that you have strong self-control. Playing dota is not a bad thing. The bad thing is to play every day, every day.

Some people may advise you to study hard. I don't know about your school and major, but personally, the teaching content in the university is too divorced from society. If possible, I suggest that you increase your practical knowledge while basically mastering the subject knowledge, and use practice to drive your study.