you may be seeing every reason not to do it again, i want to remind you that quitters never win, if only you can push ahead, you will overcome and have victory.
don't give up
dont lose faith
dont give in
victory is on the way

Their is nothing that comes in life without scarifice,just like your heading no pain no gain, nothing good comes without working for it and that is part of the challenges that we face in life,to get a good results someone's needs to overcome a lot of challenges and obstacle in getting to that desire level and that is why winners never quit and quitter never win just as you said