Life Sucks
OK, not all the time. But sometimes. Sometimes things in your life change that are out of your control, but force you to act. These events sometimes come with an intense sadness or depression, or a complete lack of any sense of control over the situation.
All you can do at times like this is ride out the wave. Endure the sadness knowing that it will get better over time. Life has many things in store and great possibilities. Sometimes things happen for a reason. Equally things happen for no reason at all, but sometimes are accompanied or followed by sublime or profound serendipity. This is what you must hope for, or seek out.