Let me also give some 2 cents here,

My formula is do not try to forget. Bcoz opposite attracts. So, if you try to forget, it would be even more vivid all those beutiful moments with her. Instead you can rejoice all of those past experiences in present and pretend you still have her in your heart, where noone can peep through. Actually, she would be inseparable in your system, then you don't feel like forgetting, it would be normal after few days or a month. Take it easy!