Learn to love yourself first, instead of loving the idea of other people loving you.
What you do every day matters more than what you do every once in a while. Read The Power of Habit.
Habits, good or bad, can always be traced back to your own thinking.
Being alone does not mean you are lonely, and being lonely does not mean you are alone.
Happiness is not determined by what's happening around you, but rather what's happening inside you. Most people depend on others to gain happiness, but the truth is, it always comes from within.
Successful people willingly do what unsuccessful people are unwilling to do.