I do it as a hobby. I am retired, so I am learning to stay mentally engaged. I use only Midjourney. Their latest version allows you to create videos. I have no particular goals or style, I'm just having fun. My tools right now are Midjourney for making pictures and animations, I use royalty-free music from Epidemic, Adobe Express to remove background from pictures when necessary, and Corel Video Studio to put music and video together. For voice I use Elevenlabs, to make images speak and lips to move I use sync.so. The crazy thing is, I've been wanting to do this for decades, but learning the programs to do it required more than I wanted to give. This is fun.