There is a world-wide epidemic of myopia and especially true in Asians. There is no question that prolonged near work from computers, reading, iPads, iPhones, video games, etc. has a role in this. HOWEVER it is not advisable or practicle especially at your age to stop doing those things you need to do for your education and ultimately to get a good job.
There is no way at your age to stop the progression of myopia. Your options are: 1. wear glasses or better vision with contacts 2. Surface of the cornea refractive surgery. Advances have made the amount able to be corrected much higher than the original intracorneal LASIK 3. Intraocular contact lens. I do not recommend this option 4. Clear lens extraction I do not recommend this option.
So you probably need to consult 2 or 3 experienced and highly regarded cornea/refractive surgeons to get their opinions.