From my personal experience, It is very difficult to do this thing at the same time. Nor you can understand what are you reading neither you get the lyrics of the song. These two are different things to do. Don't ruin it by mixing it.
First of all, you need to control your lust for the junk food, Cold drinks, and street food. If possible avoid them. Prepare your mind for a diet you are going to start. Keep in mind that if you eat healthily, you stay healthy.
I think they don't categories the courses by subjectwise properly. They add electronics subjects in computer stream. Why the computer students need to understand current and all these electronics terms. They lack powerful content.
Help Others. Not financially but emotionally. Become a part of someone's happiness and it will definitely bring a smile on your face. Help people who are in need even if you are a stranger to them. If possible join NGO.