1. Be grateful of what you have: Don’t dwell on things that you don’t have. It doesn’t help. For example, if your little cousin has an iPhone and you don’t, do not get upset with him/her. His/Her parents have an idea of what’s good for their children. If you are really good at something, be grateful for that! You might be better at your cousin at a lot of things while she is better than you at other things. Don’t dwell on things you don’t have, ever! Try to list your accomplishments and just go from there to build your happiness with yourself.
2. Don’t compare yourself with others: As indicated on the first point, don’t dwell on things others have. If you sister is more popular than you, don’t get upset by this. She may have something that you are better than her at. For example, she may not be as smart and pretty as you! Think about that. If you compare yourself with others, you will either feel bad or good about yourself depending on whether they are better or worse than you at something. So, don’t compare yourself with anyone.
3. Learn something new: If you feel that other people are better than you at everything, try to learn something new or do something to improve yourself, whether it is exercising more or eating healthy meals. From personal experience, I learned to feel healthier by exercising more often at the gym. Whatever you choose to do, whether it is learning to play an instrument or learning a new language, try to stick with it for a while. If you don’t like it after a few weeks or months, try something else.
Being happy is one of the most important things to learn in life, so do you want to be happy or sad? You choose. Life is short.