Freedom, Sorry that happened to you but it may save your life. Adjust your clothing so it will conceal a full size pistol. Get a good holster and a gun belt . Inside the waistband provides the best concealment and best ease of drawing. I carry my 15+1 9mm or my full size 357 with a 2.75″ barrel all summer. If I don’t have it on me I have it in my EDC that I carry or have next to me in the car.
If you really feel your 9 is to heavy get a new polymer gun, they are very light for the size and capacity.