I am a B.Tech first year CSE student from NIT Warangal. What are the best ways to utilise my summer holidays?

My friend is a third-year CSE student at NIT Warangal. These are his tips to enhance your programming skills during your summer holidays-

1. Coursera is a big help for freshers in any field.
2. Do not learn numerous programming languages . It is futile to learn so many syntaxes and programming languages unless you know how to use them. 
3. Start competitive programming . Competitive programming is an excellent way to polish your programming skills. It is also a great exercise to set your logic in motion. For now, spend time on Codechef/ Topcoder/ Codeforces. For a fresher, Codechef is the best platform. Get into competitive programming before the start of your second year. This will also help you tremendously for the Data Structures & Algorithms course in your second year.
4. Internships are easy to grab with the right skills and knowledge. So don’t worry about internships for now.
5. You can start open-source contribution later on, if interested. But don’t do it just to be called an “open-source programmer/ contributor”.
6. Use the internet as much as possible to enhance your knowledge and skills.

These tips are useful for CSE freshers from all colleges and universities, and not just NIT Warangal.