I HAVE A BUSY SCHEDULE during the week, so I don't have much time to relax.
I AM QUITE TIED UP WITH WORK/ HAVE A PACKED SCHEDULE during the week, so I don't have much time to relax.
If I DON'T HAVE ANYTHING TO DO, I usually go for a walk or meet up with my friends.
If I HAVE TIME TO KILL, I usually go for a walk or meet up with my friends.
Sometimes I start watching one movie and BECOME SO INTERESTED THAT I DON'T REALISE HOW MUCH TIME HAS PASSED.
Sometimes I start watching one movie and GET CARRIED AWAY.