I'd highly recommend to not "immerse yourself in learning a language" (highly paraphrased). What makes you think the language-du-jour will be relevant in 2 year

I'd highly recommend to not "immerse yourself in learning a language" (highly paraphrased). What makes you think the language-du-jour will be relevant in 2 years? 5 years? 10 years? In my opinion, the point of a CompSci degree is to understand computer science. I love CompSci because I get to solve problems that are only possible via a computer or 1,000 computers; knowing a language doesn't solve the problem all by itself. As to where to start, I suggest that you dabble in everything -- find a couple different types of simple web apps (blog, to-do list, game); try to create them with whatever tool (i.e., language) is best for the job; and think critically about why that tool is the best for that particular job.