Make use of earlier feelings of loss or sadness. It's crucial to feel the character's emotions, but you may also leverage memories from your own life to help you weep on cue. Try meditating on unpleasant, emotionally charged memories of loss, grief, heartbreak, or despair before the scenario. This should bring about emotional responses that include tears. Teach yourself to cry by identifying situations that might cause you to do so. Then, practice crying in front of a mirror or with friends. If you know it will make you sad, but can't find any other reason not to go through with it, try out this method. You might be surprised at how well it works! If you think you've learned how to cry yourself to sleep, you have some practicing ahead of you. Research shows that people who can control their blinks, breaths, and heartbeats during non-sleepful states experience less anxiety when they are faced with stressful situations during the day. So, practice making yourself cry tea over time and you'll be able to respond more appropriately when needed.