The three ideas in two phrases:
1. Self-discipline is a muscle that becomes stronger with use. When you are disciplined in an area of your life, it is easier to be disciplined in other areas, because you recognize the benefits.
2. Applying yourself to daily, simple and mundane chores is the key to start working on complex tasks. As you do one thing, whatever it is, you do everything in life.
3. Every excuse that you can come up with has an antidote that annihilates it, apply it generously. In the end, you will discover that the whole problem is a lack of love.