here we go straight to the point –
please avoid any kind of relationships , you will be attaining almost the peak of your adolescence and having feelings for someone is totally fine but you have a bigger goal in your life and this chance will never come again maybe, so it is up to u.
NO SMARTPHONES – what you need is a keypad phone to call your freinds for refreshing your mind or call ur parents to give them a track of your location and any other important things if you are preparing from any other place far from ur home
avoid too much info- just stick to one book or limited course and dont go over the board buying every book that anyone suggests you, find out what material works for u and just focus on that.