Ashlee Simpson confides in her journal and in the August issue of CosmoGIRL! about lessons learned this year. ``I've been writing in my journal about how I've grown up a lot this year, and something I've learned is nobody's perfect. It helps to get it out and then move forward.'' And that's just what Miss Ashlee did after her lip-syncing debacle on ``Saturday Night Live.'' She described herself as ``the kid that peed their pants at school - that was me on `SNL!' But you've got to move forward and find the good things.'' Like better excuses for lip syncing?