Stop keeping clothes for ‘best’ —wear them regularly.
Smile. Whether you feel like smiling or not, it makes you feel and look better, and other people respond better to you as well.
Stop comparing your life with other people, especially celebrities. Most of them are worried sick about slipping down the charts or not getting offered the best roles. Their self-obsession means that they are rarely capable of holding down a happy and loving relationship.
Write a proper diary, on paper with a pen. Imagine it’s being written for the future you and make it a good account of your life, filled with humour and positive insights. Make your tone brave and optimistic. Adopting this writing style will enable you to change your perspective of what’s happening to you.
Compliment yourself. Out loud. In the mirror.