Asalaam A walk around about ishraq/fajr time is my personal advice. Walking on grass which is soft at this time lightens the head for the whole day, I read it in the advice of a shaykh to his murid and it works tried and tested. Zikr you could do: Durud sharif,the shorter version if you can't say the long one صلى الله عليه و سلم لا حول ولاقوة إلا بالله There is no power or might except with Allah How old are you. Wasalaam