3. You are a combination of the five people you spend the most time with.
It may sound like a cliché, but it's true. If you really want to change your life, you have to change the people you hang around with. Spend time with people who support you and believe in you. No Debbie-downers.
5. Friends come and go.
Just because you were close with someone 10 years ago doesn't mean you're going to be close to them today, and that's OK. People change and so do relationships. Sometimes people come into your lives at very specific times to help you get from point A to B, and then they somehow fade away. That's the magic of life and relationships: they're always evolving.