Today I wasn’t being efficient at work. I let time slip through my fingers, spent too much time on my phone and online. I procrastinated on my slides preparation for my work, consequently, I have to do it at night and tomorrow morning.

Today I wasn’t being efficient at work. I let time slip through my fingers, spent too much time on my phone and the internet(or-online -both ok). I procrastinated on my slides preparation (or -on preparing slides) for my work, therefore I will have to do it tonight and tomorrow morning.

Today, I wasn’t efficient at work. I let time slip through my fingers, spent too much time on my phone and the internet (or-online). I procrastinated and deferred preparing slides for my work, therefore, I have to do it at night and tomorrow morning.