The biggest enemy of most people is themselves.

When people delude/lie to themselves, procrastinate, set unrealistic expectations, stay in comfort zones, fail to learn and be productive, lack of discipline, bad reactions, not thinking things all the way through, lack of accountability, lack of self-awareness, blaming others for their own issues, bad habits, lack clear goals, thinking only in the short term, lack gratitude, creating poor relationships with others, and the list goes on and on…

For most people, yourself will be your own worst enemy, you will create your own demise in this life. The enemy lies within, but the good news it can be conquered.