A huge part of becoming successful is developing a positive attitude. Let's face it, life is adversity. If it wasn't we would stagnate. Humans need adversity to struggle against in order to gain wisdom. Maintaining a positive approach is what allows us to cope with adversity and find solutions to our issues.
Mindfulness is for everyone. We've discovered that every individual from kids to entrepreneurs can benefit from becoming more in-tune with their bodies, reducing stress and feeling better in the process. Set aside a few minutes every day to just breathe and stretch. It's worth it!
If you're an introvert, I feel for you. Being shy is one thing, but when just the bare thought of speaking to someone freezes you up, it makes life super difficult to say the least. Check out how practicing mindfulness might be able to help get you on a more comfortable path.
There are a ton of different techniques and suggestions for mindfulness. The concept revolves around just being intimately aware of your surroundings at any given moment. Check out this article about using ancient Irish proverbs to help define and guide your practice.