procrastinate – v. to be slow or late about doing something that should be done; to delay doing something
procrastination – n. the act of being slow or late about doing something that should be done.
distracted – adj. unable to think about or pay attention to something; unable to think clearly about something
focus – v. to direct your attention or effort at something specific
task – n. a piece of work that has been given to someone; a job for someone to do
session – n. a period of time that is used to do a particular activity