>1. Be Stuck in Your Mind All Day
Multi-task during everything you do, that way you are always making the worst of every moment, always mindless, thinking about something else.
Constantly live life by the inner voice of your parents, teachers, and religious leaders. Let this imaginary voice be your dictator, telling you what you and other people "should" do to be deserving of Love.
Daydream, but never take action; let your dreams die as vapor, that way you get to truly savor Suffering when you experience it.
To suffer more: ignore responsibilities and don't accept responsibility for the consequences of your actions. Spend the day justifying your inaction to yourself, practicing for when others inevitably ask you what you do.
To retain your suffering, avoid the following: meditation, breathing exercises, and silently appreciating the beauty of Nature. They seem simple, but trust me: they will rob you of your fears, anger, anxiety, stress, depression, and loneliness!
The more you stay stuck in your mind, the more you forget about the bliss and joy of the present moment (not what you want if you want to make any Suffering gains).
>2. Ruminate on the Past
Do this even though we know that memories are never 100% accurate, unbiased, detached, and objective.
Do not forgive yourself or others, ever, if you wish to live a life of suffering.
The more negative the event you remind yourself of, and the more self-victimizing your perspective, the greater your suffering! It's a win-win!
To suffer intensely, ruminate, blame, hate, and self-victimize, instead of learning, forgiving, letting go, dropping the emotion, and moving on for your own sake.