In this lifetime what ultimately dictates your level of success is your willingness to persist till it exists. You see, the growth and development of any dream is only limited by the time that you're willing to invest in it, as well as the tears you're willing to shed to get there. It's a lengthy process setback by naysayers and antagonists but nothing in this lifetime is impossible so long as  you want it, so just remember that the only thing holding you back from what you really want is you.  Keep a good attitude and a great circle of friends and failure will never be an option.