'Winners never quit,' we're told, when, in reality, winners quit all the time: choosing to stop doing things that aren’t creating the results they desire. When you quit all the things that aren't working for you, when you quit tolerating all the negative things that hold you back, you'll create a positive 'charge' in your life as well as create the space in your life for more positive experiences.
One of the most important things we'll ever learn, is what we should spend our time on. When we use our passion to do what we are born to do, we are given the gusto to keep at it in spite of the odds. Along the way, we try many things, and some ring true and some will drag us down. Stop and listen to that inner voice, it will tell you what to focus on and what to "give" to someone else to make a success of.