This is the key to life: To expect everything to be given to you from above, yet to be genuinely surprised and forever grateful, when they are. Expecting all good things to be yours, while not knowing how to take anything for granted. If there may be a key in life, this is the key.
Think about every good thing in your life right now. Free yourself of worrying. Let go of the anxiety, breathe. Stay positive, all is well.
There are better people in the world, do not let the worst do the worst to you, you deserve the best in life.