you are not procrastinating, your studies, but rather whats being delayed is the time or moment of your success, your parents feeling proud of you, your enymies getting jealous of you, and your freinds asking for parties, make a schedule and stick to it, it will help. you will feel good and motivated at the end of the day as you did as per your optimum level and potential. all the best buddy. 

it happens..now if you really wants to do something productive just follow  my instruction

• use quora instead of Facebook
• delete all of your social media app and explore the real world
• set your goals
• before doing anything just think once about your family 
• set task for yourself like study for 3 hours and give rewards to yourself.
• if anything distracts you make it your power.

good luck

This is a natural thing which happens with students faced the same situation. The only thing can help you is self motivation.

You should focus on making a study plan and moreover working on it.
Make realistic goals which you can follow.
Also you should remember what your aim is and that the opportunity does not comes again and again.

Your aim should be clear and focused.

Hope this helps.