1. Make a list of your strengths. This is one of the hardest questions that I always have to ask people when they are at their lowest, but no doubt everyone is able to find at least one strength every time I ask. Identify at least one, and if you're having trouble finding more talk to a trusted support person and ask them what they think your strengths are.
2. Challenge your negative thoughts. Frequent negative thoughts are "Nobody likes me" or "I don't do anything right." Really? Nobody? Anything? Those are all absolutes and absolutely untrue. Go back to your list, find your strengths and then again, identify those trusted supports because they will be there as well.
3. Dress up or in clothes that make you feel good. Maybe it's not always about dressing up, but feeling comfortable. Do what it is that will make you comfortable in your own skin.
4. Do something that you enjoy. Take a break and focus on yourself. What is it that makes you happy? A TV show, reading, cooking, talking a walk? That 15 or more minutes that you spend on yourself will do you wonders.
5. Do something nice for someone else. Believe it or not, turning our focus from ourselves to someone else is actually going to be the most helpful for you. It brings about true happiness and true feelings of self-worth. The joy of helping someone else cannot be faked and it is something that will last much longer than even some of the skills above.
Health is the greatest possession. Contentment is the greatest treasure. Confidence is the greatest friend. —Lao Tzu