Loaves don't keep shape
Until recently, I made loaves with approximately 60% hydration. I did that because the dough was easier to work with, but obviously it made for a denser crumb.
Over the last few weeks I've increased the hydration to 70% to get a better crumb, but I can't get my dough to hold its shape. I've watched every damn video I can find on YouTube about shaping and working higher hydration and nothing works. It feels like my seams won't stick, no matter how I stick them (or the top just oozes apart- I'm not sure why it doesn't make a neat little ball). They always end up being a step away from a pancake. The photo is today's loaf.
For my birthday, my wife bought me a stand mixer, so I haven't been mixing by hand. I make sure to knead afterward and have a 15 minute period of autolyzation before adding salt.
I would be most grateful for any tips beyond the most basic (or how to do the basics better).