Jealousy comes from counting others' blessings instead of our own. So very true, don't let your life pass by while you worry about someone else, count your blessings, be grateful, be happy for others (even though it can be hard).
Most things will be okay eventually, but not everything will be. Sometimes, you'll put up a good fight and lose. Sometimes, you'll hold on really hard and realize there is no choice but to let go. Acceptance is a small, quiet room. So true.