@Cherrypi you don't have to write down your food for the rest of your life! It's just to get you focused on what you're eating, making sure you eat enough speed, you're having you're healthy extras and not too many syns. I started in January, reached target last week (1st 9 off) all I do now is keep track of my syns and healthy extras.
Go back and re-read your book, have lots of healthy snacks prepared in the fridge that you can grab. Have a little of what you fancy, just don't go mad, syn it and move on.