If you’re really THAT bad…don’t do it.
But…if you must…
Get a good night’s sleep tonight, if you feel RUBBISH in the morning, have a slow start to the day, take any medication required to clear your nose/head etc. and don’t start to drive until you feel capable of it.
Eat breakfast. Even if you don’t feel like it.
If you do start your journey:
Keep the car window closed and rely on the air conditioning for temperature control (studies show that road noise from an open window increases driver fatigue).
Construct a playlist of familiar music to play on the motorways, again studies show that singing along to familiar songs prolongs a drivers attention span.
Take regular breaks, drink plenty of water and CHECK ANY MEDICATION you take for whether or not it causes drowsiness…if it does, don’t take it!
Hope that helps…