Questions for you.

So you've been close to a few people in your life, family and good friends, and by now most of them have screwed you over.
Should you still get close to people?
Should you worry about the ones that have screwed you over and the ones that don't want you anymore?
What do you do when the amount of people who aren't worth trusting has outweighed the amount of people who are worth trusting?
What happens when its too hard to look for the positives in life, and looking for the positives in life just becomes a negative?
You can start all over again with your friends and sometimes that works if you think it's worth the risk of pain, but you can't start over with your family, you can't ask for a new one and sometimes no matter how much you want to you can't fix the old one.
So once again do you continue getting close to people or just screw everyone off like everyone has done to you and live life alone?

Thats all I wanna know.
Thanks.xox