I am a high handicapper shooting in the mid 90’s and have been using a set of Cleveland 588 cb irons for about 6 years(7-pw project-x stiff shafts). I have been a very casual player but recently decided I wanted to get serious about golf. My question is should I invest in a set of used “game improvement irons” ? I feel like my current irons are unforgiving although it may be my lack of practice and poor swing. Would the benefit be worth changing to something like the TaylorMade m2’s or similar clubs? Or should I just invest the money on lessons and learn to use my Cleveland 588 cb irons?