A healthy lifestyle begins with getting rid of bad habits:
You will feel tired as long as you eat poor-quality food.
You will feel drained as long as you interact with neurotic or manipulative people.
You will feel insecure if you continue doing things that don't improve your life just because everyone else is doing them.
Don't settle for an average version of yourself.
Life is much more fun in a healthy body and with a confident mind; invest in yourself until you achieve this – it is the first step towards a happy life, and there is no shortcut to it.
