Let’s talk new shoutgun and getting adjusted to it...

So I grew up shooting an 870. It’s the first gun my dad put in my hands and outside of deer hunting I used it for every thing. I shot a 20 gauge until I was about 14 and I moved up to a 12 gauge both were old wingmasters and they were bullet proof. The gun felt comfortable and it’s what I’m use to. Well at the end of last bird season I decided to buy a semi auto as the pump life was getting old. I purchased an SX4 because that gun felt like it fit me the best out of all the guns I shouldered when I was checking out new guns. I have put about 300-400 rounds through it and the gun has performed flawlessly but I just can’t hit shite with it. With the 870 and a round of sporting clays I usually shot 70 or 80 out of 100. Nothing great but I would say I was a fair shot. With this new SX4 I’m around 40 or 50 after two rounds of 100 sporting clays.

Anyone else had issues getting adjusted to a new shotgun? I plan on putting another couple hundred rounds through it and if I can’t figure it out I may move to another gun. I know it’s got nothing to do with the gun and it’s all me, but damn I can’t hit shite with it haha.