I continue to have adventures here. I bought some Chinese clinchers off ebay. They were way out of true when they arrived. No problem, I have a cheap truing stand and spoke wrench. Well, as usual it seems I've taken it from bad to worse

Thing are so bad with the rear right now that the wheel pulls way toward the left chain stay but also toward the right brake pad. Where can I start to fix this myself? Should I just loosen all the spokes and tighten? I dont have a tension meter or dish stick.

And yes these are the same wheels that I just had a heck of time mounting tires on. Obviously I should have done this truing before mounting tires and I also wonder if wheels not being tensioned correctly attributed to this issue