Some of the most profound growth doesn't happen while reading a book or taking a walk, rather, it seems to happen at those times you are angry, frustrated or hurt.
Stop expecting too much from people
Don't trust too much
Don't love too much
Don't hope too much
Don't keep repeating the same mistakes,
And don't take everything so personally.
Learn how to fight alone, and if someone comes alongside you, then that's a bonus.
Follow your heart, but take your brain with you.