I have had to lose by being impulsive and not taking my time to make better decisions. Should I think more about my decisions or is it just a lack of concentration? Do you have any advice to give me?
I found it's not so much concentration but rather focus. When I review some of my plays that went sideways I realized my thinking had missed something I should have been aware of and included in my thought process. I also found that it was a little to easy to get impulsive in certain situations like getting a great hand after a string of garbage
hands or right after a loss.
I decided to force myself to slow down and the first step was my mouse. I figured out one day that when I got the good hand I was reaching for the mouse before it was my turn to act and often I would react quickly to the previous player's action. That would lead to a too-quick call or even a shove. So, I keep my hand off the mouse. I think of it as the same as the pros at live tables not looking at their cards until it's their turn to act. It slows me down.
Once I have the slow-down working I try to focus on all the different aspects of the hand like stack sizes, position, tendencies etc. I try to check off all the elements so I don't miss something important. I have found my game has certainly improved and I hope yours does too.