-life isn't fair, get used to it
-when you gain something in life you lose another, always, and time is almost always involved in the transaction, not a real advice but more something you must be aware of.
-losing time doesn't necessarily mean wasting it, very important
-knowing what you need and above all what you don't, setting your desires accordingly, is key to happiness
-try to read a minimum, humans write things since a bunch of time and thought about lots of things very cleverly
-keep your brain stimulated, exercise and eat healthy
willpower and hope
you will need them, a lot, an awful lot