The need for interdependency amongst humans cannot be over emphasised....we all need each other. No one is an island and no can achieve it all alone. I always say it to people...No one friend can offer you all you need hence the need to have a good engagement with more people. Most times you might not know how beneficial some people are until you explore those benefits. I feel you just have to channel the energy people bring in to your life in a way that will benefit you. You only let go when you see the energy is toxic. But then don't let go too easy