A quick answer to the question posed in this title could be: If you think you need help, you probably do. Law Enforcement officers by nature and by culture to not easily seek help. They are, after all, helpers. It is their job to help others around them. And how can you be an effective helper if you are yourself in need of help? Add to this the "macho" demands of the culture, the abhorance of any signs of weakness, the potential to have your shoes busted by your peers, and to just get busted by the boss, and the question becomes: Why get help at all?
For this reason, most officers wait far to long before "giving in". Their problems have typically worsened just through self neglect. If I could make one point to any officer it would be to remember that they are first and foremost human. All humans need help from time to time. That in fact is what their entire career is about: Helping. By being willing to get help when it is needed, and officer in essence honors his own profession while perhaps saving his own life!