Surround yourself with positive people. This includes you! Stop negative thoughts and replace them with positive thoughts.
Follow people on social. media who have a similar body type who speak positivity about their body.
Delete, and unfollow people who cause you to feel less than, cause you to compare, or no longer serve you in a positive manner.
Get rid of everything in your closet that does not fit you today. No more thoughts of "this will fit me when i ____" Your body is worthy of cute and fun clothing today!
Write yourself a letter to your younger self and tell her how proud you are of her.
Write down a list of women you admire and why you admire them. Try to see how you are similar to them. I promise you are more. similar to them then you may think.
Take a moment daily to look at yourself in the mirror. Say out loud to yourself "I am beautiful, I am worthy, I am capable" This may feel strange at first but I promise it will become more natural as you start to believe the words you are saying.