OK a harsh but pertinent comment, just stop shooting multiple formats for a short spell. You bare flailing around getting nowhere, you are just wasting time and film, and money, with no improvements.
You have to go right back to the basics of using film, it really is not difficult. At the moment it's like you are trying to sprint before you have barely learnt to walk, and you are just constantly falling over, helplessly.
Use a 35mm camera, really nail exposure, effective EI, and development, tightly, you can quickly see a huge increase in image quality. It's a no-brainer.
Ian