Riddles

1. Too little of me and you shall never prevail.

Too much of me and you'll surely fail.

What am I?

2. If you have me, you'll want to share me. If you share me, you'll lose me.

What am I?

3. You can only get it once you give it.

4. If you break me I do not stop working. If you touch me I may be snared. If you lose me nothing will matter.

5. A prison you feel safe in, yet it grows bigger as you try to leave it.