Whatever it is you are really desiring, give it away. If it's companionship, give it to someone else, and just listen to them and be there. If it's money, give it to someone who is less fortunate. If it's encouragement, give it to others. If it's friendship, become the best friend you can be to others. If it's time, serve others with your time. You will be amazed to see how much more of everything you have when you are willing to freely give.
Quitting is not giving up, it's choosing to focus your attention on something more important. Quitting is not losing confidence, it's realizing that there are more valuable ways you can spend your time. Quitting is not making excuses, it's learning to be more productive, efficient and effective instead. Quitting is letting go of things (or people) that are sucking the life out of you so you can do more things that will bring you strength.