Enjoy life as much as you can.
Be yourself, don't be who others want you to be.
Having someone quit on me has been my greatest motivation Iv had and helped me realize I could put forth more effort into work and helped me realize I don't need anyone but myself.  Company can be overrated, I don't need another person to disrupt me working towards my goals.  I know I can always count on myself and no one else.  Everyone else isn't even worth my trust and has showed me I can't trust someone else to help me.  
Living the dream