What's going on with my images of Jupiter?

My seeing isn't too great, right? I have a 6se, and it seems like I can't get it focused all the way when viewed through my phone camera (that's what i use for imaging, i know), like, i'll turn the knob, but it never gets sharp, it just goes from "blob" to "blob with stripes" and then back to "blob" but when i view it with my eyes, it looks a lot sharper. When I stack videos with autostakkert, vids usually around 15 seconds long, they will stack well and get rid of the noise, but they just look super blurry. No problem, so i take them into Registax and turn up the wavelets, but instead of sharpening the image, it just sharpens invisible rainbow squares and keeps the actual banding of Jupiter blurry. It's so blurry that I can barely even see the red spot! Also, the processing area in Registax isn't fully around jupiter, just a box inside it, so when I go and try to color balance it or change the contrast, it only does the middle of jupiter and not the edges, if that makes sense. What the heck is going on and how do I fix it?!?!?! If you have any other questions you need to ask before you "diagnose" the issue, that's fine. More than welcome, cuz, I wanna know what's going wrong.