Happiness is a butterfly, which when pursued, is always just beyond your grasp, but which, if you will sit down quietly, may alight upon you.
There is nothing wrong with chasing your dreams and aggressively pursuing your goals. However, don't make the mistake of thinking you can't be truly happy until you reach them. With God's help, slow down and keep a healthy balance so happiness can find you.
Also that everyone should eat and drink and take pleasure in all his toil–this is God's gift to man.