Filling a shoe box with all photos, cards, presents, memories, whatever, and putting it right at the back of the wardrobe helped me. I only ever looked at them again once (although I did go on sit up until 4 in the morning drinking and rearranging my music collection?). I started running, went clothes shopping etc until I was confident and happier with myself again. I still run miles and miles each week. I spent nights upon end kicking a football against the garage wall until way past dark when I missed her. I went out more, stopped listening to break-up music, and started to realise there are better things in life.