I started out playing with a set of Callaway ladies clubs when i was 14 to 17, then got myself a set of Cobra 3100iH's. I've been using those since I got them, and just by practicing and playing a lot, my handicap has gotten down near scratch. So, to answer your question, it might not make too much of a difference when your shooting high to buy new irons except for the feel of them. I'd suggest to new golfers to get irons that are good for feel like cavity-back irons, because going to those straight blade irons can really hurt progress of your game. But, really, the key to breaking 90, then 80, and to near par is to practice, practice, practice just like anything. A tip to break 90, practice the short game the most. Meaning everything within 100 yards of the green. If you can get up and down nearly every time from within 100 yards, you can break 90 no problem. Watching the pros, within 100 yards, they put the ball within 15ft of the hole most of the time giving them a great chance for birdie or par.