Achieving the extraordinary is not a linear process. The secret is to show up, do the work, and go home. A blue collar work ethic married to indomitable will. It is literally that simple. Nothing interferes. Nothing can sway you from your purpose.
Once the decision is made, simply refuse to budge. Refuse to compromise. And accept that quality long-term results require quality long-term focus. No emotion. No drama. There is no need to beat yourself up over minor setbacks. Learn to enjoy and appreciate the process.