Learn self dependence
Sometimes, you believe so much in your friends that you think they would never betray you; but once they have two options to choose from, and one favours them the most, they will go for it. The thought that there is someone like you in existence will never cross their minds until they have achieved what they wanted. No one is trust worthy. So, do not depend on anyone for your existence apart from God, because he is the only one that can never disappoint you.