Taking note of your strengths and positive attributes about yourself raises your self-esteem and appreciates you for who you are.
For example:
You are a strong and loving person.
You try your best every day.
You persevere.
IMPROVEMENT
Always aim for improving yourself in a positive way, do not change yourself for the likes of others. Focus on what you want to improve about yourself so that it can help you in the future.
For example:
I may not excel in writing, but I excel in reading.
I will practice my writing skills so that way I can write better stories in the future.