Don't be afraid to change your goals when you find they are no longer serving the right purpose for you. It's not the same as "quitting".
Quitting is looking at the here and now and giving up when things get tough. Changing goals is looking ahead and intentionally going in a different direction or doing things a little differently to get you to where you want to go.
Sometimes it's just a matter of changing some goals as we find a better way to reach our dreams. And sometimes it's even changing our dreams. When we realize we've chosen the wrong one, or we discover another one we want more, or we simply go through our next season in life.
Some dreams span a whole lifetime, while others are only for a season of our life. So don't get trapped by being locked into certain goals and dreams you've set.
Every now and then, evaluate where you are currently going in your life and compare it to where you are wanting to go. Then adjust your sails and navigate accordingly. :)