You have to accept that

-if you receive something good, be prepared for the worst when you will lose that good thing

-nothing is eternal

-life is no fairy tale

-you can't just walk away. you can't just disappear. you can't just ignore.

-you can't just rely on anyone.

-even if you can rely on anyone, you can't rely on them anytime.

-some people will come in your life to disappoint you.

-you can't have too high expectations. it's best not to expect anything from anyone.

-people might only be nice to you when they want to make use of you.

-forever is too good to be true.

-you are simply like peter pan from neverland. you just don't wanna grow up.

-being a hypocrite is inevitable.

-you can't tell your secret to anyone.

-you can't really tell your biggest secret.

-you can't just get along with everyone.