If Photoshop has served you well, then I would continue to use it. The rationale is that it is great software (though the current version is far better, providing easier procedures for things that were a bit involved in the past), and you are already familiar with the software.

One of the things about Photoshop that people never recognize, is that while it is an amazingly powerful image editor (and video, too, btw), very few people actually use 100% of all of the tools it contains. The average is probably more like 20%-40%. I might use about 30% myself - and I don't worry about the "other stuff" it has. When something comes up that constitutes an editing challenge - I know that somewhere someone has done it and documented it either on a website or a YouTube video.

If you go down the rabbit hole of trying new software - you will have the challenge of having to learn something new, a platform that is not as competent as what you are now using, thinner training resources, thinner third party support, etc etc etc.

I suggest you stick with it - there are lots more things to learn. But the biggest thing you should consider is how to improve your self-critique. Knowing what an image could use to improve it is a big part, then seeking out and applying the correct tools in the correct amount is also big. Both are critical to your pursuit of better results from your editing. New software, maybe not so much.