The only time in life that you really fail is when you aren't willing to deal with the obstacles that you have yet to overcome.
The true sign of strength in any person is shown in their willingness to deal with their own problems instead of being eager to pin whatever they have been through on people and other circumstances that maybe have some sort of relation to their pursuits.
You often make the choice of the people who you want to be around when you are pursuing victories.
If you notice that people may not really be willing to go along for the ride, and that people may not really be out to help you get to where you need to be, then you probably should choose not to depend on these people during your pursuits.
Sure, life may be a bit harder without the potential help of these people, but choosing to overcome without them may just be letting go of just enough baggage to be able to climb all of the mountains you dream of climbing.