The answer to your question is, yes, it is possible to "do it alone". The bigger question is, "Is it easier to "do it alone" or to have as much support as possible to help you?" From your posts it sounds like you feel like you would be better off with the support of others. If that is the case, why would you try to "do it alone"? Why not utilize the support that is available out there to help you. This is not an easy thing either way, there is no point in making things harder than they have to be. Take care.