Obviously, you need to upgrade your irons and wedges, but at Level 75 you have a lot of options.
Either of the wedges recommended are very good, but the top level Clevelands are opening up to you at this point. At L76 you can get the 56 degree, the 60 at L78, and the 64 at L80. If you buy the top Clevelands, you'll never have to upgrade wedges again. But they are quite expensive.
Similarly, you could go ahead and get the Level 59 G20 irons, or you could wait for the Burner 2.0s at L79. Quite a difference in meter speed, but the Burners will stick better and have more length.
You've waited this long to upgrade, it would seem to me to be a waste not to go ahead and get the best clubs you can.