If you're going through hell, keep going.
Quality is not an act, it is a habit.
It's always too early to quit.
To be a good loser is to learn how to win.
Who seeks shall find.
Leap, and the net will appear.
Be kind whenever possible. It is always possible.
Do not weep do not wax indignant. Understand.
By failing to prepare, you are preparing to fail.
If you can dream it, you can do it.
I studied voice for about two years with an amazing coach, and I never rose above the level of mediocre.
I think there are a lot more writers who are actors than you know they just don't have roles on famous TV shows that you recognize.