General

No. It doesn't. If you are young, you have lots to learn about life so that's normal. If not, you might discover that your previous beliefs were invalid.

A strong person admits his or her own mistakes. A strong person can take risks. Don't live your life for pride.
Having a strong belief in one thing forever may hinder your lifestyle in the future. It may have restrictions on your judgments. It may contradict your conscience in the future. But it depends on what it is, really. After all, life is not that long. Some things are very likely to last a lifetime.

People don't stay the same forever. You just happen to change too fast. If you can overcome it, then you'e not weak. But if your life goes down the gutter because of it, then you're weak, or you don't have the support from your family and friends (or relatives if you're from a family-oriented culture) to help you get on track of life.

It doesn't make you a weak person.. but it does matter exactly [b]why[/b] your beliefs are changing. If they're changing because new evidence is changing your mind about something then that's a good thing. To me people are weak when they hold onto beliefs regardless of contrary evidence. People need to be willing to change/adapt their beliefs.

Here use this http://www.howstuffworks.com/

No, it's normal when you're young.

If you don't think religion is a part of the government trying to stop ppl from questioning things and that morality doesn't real, then you are a weak person. Only ubermen who don't care about anything other than having sex with girls are the true alphas. you would know if you read nietsche.