"Keep your head up"

Meaning:
Keep going, don't feel discouraged, stay strong through a difficult situation.

Example:
I know that you lost your business but keep your head up, good things are yet to come.

"Toss Up"

Meaning - A result or decision that is not yet clearly determined or decided.

Examples:

*Now the baseball score is 7-7, seems as if it is a toss up.

*It's a toss up between the two Presidential candidates. We will see who actually wins on election day.

"The early bird catches the worm."

Meaning: The person who arrives first will most likely be the one who succeeds or gets what they want.

Example:

Billy: I want to sit in the front seat of the car.

Joey: No, I got here first.

Mom: Joey got to the car first so he gets to sit in the front.....the early bird catches the worm!!