There are many obstacles in life but doesn't mean we stop living, does it?
When a war has broken out and their bodies without names, without family torn apart limb to limb and you struggle to survive only to live, think of life that way.
Mean people as a rock in a way, pick it up and throw it away. Challenges as enemy, fight them no matter what. Expectations, as a distraction, it's not bad to have them. Hope as a precious diamond to never let go.
And you would live your life without regret.