That's a tough one, huh?
I think the first step to stop making bad decisions is to realize you're making them in the first place. I, along with most of us, have spent months and even years, plugging along in a particular direction without any idea that I'm creating a pattern of bad decision making with regards to an area of my life. Then, I can't understand why problems continue to creep up in the same area. With the help of feedback from friends and loved ones, I might be lucky enough to open my eyes in self-awareness and see my fault. The painful step of admitting a personal flaw can often be the hardest.
The next steps are challenging as well. It's a process of stopping a bad habit while creating new good habits. Did you ever bite your fingernails as a child? I did. My mother tried to get me to see the error of my ways with Tabasco Sauce and soap, but that was no match for my determination. That same determination has served me in countless positive ways as it has given me stick-to-itiveness that has seen me through Dean's Lists and a health scare. It's a huge blessing until it's working against you in the form of stubborn blindness.
Once I've seen my mistake, the beast takes a positive form again, as it is determination to persevere and win a battle. I always have loved and thrived from a good challenge. After acceptance, comes a stage of processing all the past behavior in an effort to determine where things went wrong over and over again. I spend time thinking, doing yoga, and journaling to help bring me to greater awareness. During this time I'll go through emotional highs and lows, highs with joy over this new found vision and progress, and lows in grieving over past mistakes.
After a while, it's time to start practicing new behaviors, but be careful to keep your eye on the prize. Where your eyes go, your feet and behavior will follow. Keeping your sights focused takes another quality character trait, discipline, and discipline takes a lot of practice. Ask any dieter who has ever fallen off the wagon. It won't be perfect every time, but you can get back on track and continue.
Lastly, when you're trying to create a new path, you may get lost and need to ask for help. Use your support system of friends and family to help you navigate a sure course. With self-awareness, discipline and support, you can be on a path to better decision-making. You can!