A hard truth is that you can devote your entire life to pursuing Christ and still never master living in complete holiness. We can draw closer to Christ, but will never be with Him until we die. Thus, we will never realize our ultimate goal in this life, no matter how hard we try or how much we persist.
Everything else in life is possible except for living in perfect holiness. And yet, this is what we are called to in this life (1 Peter 1:15–16; Matthew 5:48). The goal is to try every day to be a little more like Jesus than the day before. It is the only goal worth having and pursuing. Do you believe that? If so, does your life reflect that belief?