I would say myself. Even people who mean the best can't always be there to support you, you need to be able to take care of yourself. However, I have had some friends and of course family that are there when I need them. One of my best friends from college being one of these people.
Although, imo, if they're constantly there to support me, then they're not doing what's right, sometimes a person has to take care of themselves. Not always of course, just sometimes.