I have a Ruger LC9s and a Smith 360J. The Ruger I shoot well and often. My 360 is slightly heavier than yours. I like shooting it and do about once a month spring thru fall.
If you are not enjoying the pistol I'd change ammo to target wad cutters. They have little recoil and cut a nice clean hole. Another option is Hornady 38 spl non +p Critical Defense ammo 110 gn is a low recoiling round
Other thing to do is maybe a grip change. This ammo and Altamont finger grooves combat grips make my wifes M60 comfortable for her to shoot. My last Idea is to swap the titainium cylinder for a steel one and gain a couple ounces.