At some stage we all need to re motivate ourselves, no matter who you are, or what your doing!
I would strongly recommend watching this video, and reactivating your goals, not necessarily changing them, but just making sure they are still your main priority. For your journey to be a complete success, it is vital you are focussed on the final goal and that your mind set is clear and positive.
Self analyse your life style, exercise routine and diet. Be completely honest. If you can change something or work harder to keep you heading towards your final goal then do it! Sacrifice is worth it, there is nothing you can't do with out, you started the journey, it's up to you whether you finish it or not.