Check out this post on therecordingrevolution.com by Graham about mixing your own music. It is easy to get confused or biased when mixing. After continuous mixing and listening, one’s music can start to sound better than it really is. He gives three reality checks you can use to make sure your mix actually sounds good. These checks include listening from another speaker system, comparing your mix to other good mixes, and taking some time away from your mix to come back to it.
Some good points. Read in full:
3 Reality Checks For Mixing