How can a person change if he shows willpower

When a person has a goal, then everything will be on his shoulder! But most people give up everything halfway and give up, and then either look for the guilty or drown in self-criticism. Therefore, motivation and willpower are very important for people. This girl is tired of mocking looks and offensive phrases dedicated to her appearance. Namely, completeness. Losing weight is not as easy as it seems. Giving up sweets and losing weight while lying on the couch is just a myth. And the argument "I don't have time for sports" is just an excuse. As they say, there are no easy ways, but the heroine of the video managed to achieve amazing results.