Go for it now. The future is promised to no one.
Only the educated are free.
Who seeks shall find.
You never know what motivates you.
If you've got a talent, protect it.
Expect problems and eat them for breakfast.
If you think you can do it, you can.
After a storm comes a calm.
By failing to prepare, you are preparing to fail.
It's always too early to quit.
There are simply more young people than there ever were. You get this feeling of strength. Also, large numbers can be a drawback, making it difficult to lose one's anonymity.
Teenagers today are more free to be themselves and to accept themselves.