Move forward through the shot

I seem to be having a re-occurring problem, there are times when I move through the shot (as you should do) but there are also times when I seem to stay on the back foot. Can anyone suggest a good practise routine to ensure I stop staying on the back foot, I generally hit through at about 70/75% I am aware it happens more when at the top of my swing those little red horns appear at the top of my head and the thought process goes like " Now I'll rip your cover off you !!!!!!",. but I rarely get them now as I've got into my senior mode.