Also a serial procrastinator and I set alarms for EVERYTHING including reminders that i need to start a larger task such as dressing and getting ready for an event.

Sadly, I am also chronically late and easily distracted (ADHD) so I even set alarms giving me 15 min etc warnings before I need to leave. This helps me only be slightly late rather than really late.

I set all my alarms either at night before bed or in am when I wake up while I drink coffee. It is not perfect but it helps.