Never do something that you do not want to do, unless there is a very good reason. The hope that a relationship might improve is never sufficient reason for doing something that you do not want to do. Never act against your conscience. Understand the difference between lies, opinions, facts and fiction. Everyone has a right to their opinions, while the responsibility remains to make sure that the facts are right.
Fiction has legitimate purposes, too.
Do not assume everyone else to have the same values and goals as you, but seek to understand their thinking, so that you can communicate effectively. The people you meet are your teachers in the school of life. Treat them with proper respect, even if you do not like their lessons. When you see that one of these teachers makes a mistake, learn from it. Invest in building friendships with those people who will be faithful to you when you really need them.