get distracted
not pay attention to the things you are supposed to be doing
put off
to delay doing something until a later date; to delay an event or arrangement until a later date.
waste time
spend time doing things that aren't important
prioritise tasks
put jobs in order of which is most important
multitask
to do more than one thing at the same time
meet a deadline
to complete a task in a set time
leave things until the last minute
do jobs just before the time they need to be done
do things ahead of time
do things in advance
use your time wisely
be careful with your time
get started
to begin a job