The worst thing you can encounter when you interact with people is your own lack of a base line.
No matter who you are interacting with, be it your family, your friend or strangers, you should know:
1. You have your own boundaries which others have no right to pass unless you authorize them to.
2. What you do is your own business. And you are the one who decides how to do them.
3. What others do is their own business. If you don't want to help, you have the right not to.
There is no need in maintaining all those pointless relationships and making yourself miserable.
You don't need to please everyone.
Your energy is limited.
And it's impossible to get along with everyone.
This is life. It may not be the life that we imagine our lives should be like. But it's the true life that we have to live.