For a couple of years, I didn't have a darkroom so I had the local photo place develop my film, and the results were drastically different from what I used to be familiar with, with my own charts on film developing for making printable negs. Mostly the images on the film came out okay in terms of contrast and details, but there were some that ended up with extreme contrast and underdevelopment. For them, the grade#02 or even #01 looked too contrasty. I got very unmotivated and started to hate what happened. I tried PS on a computer to at least pre-visualize what the final prints would have to look and kept the inkjet print-outs as the reference.
When I got my current darkroom equipment, a lot of things were so new and very unfamilar to me, and for the next one or two years until very recently, I had to spend so much time adjusting to that quality by experimenting (again!) on the developing agents, dilution, time, agitation. Well, I have more control now and seem to print a little diffrently compared to how I used to do in the past, but in many ways, it's better, because I feel like I've experienced the best and the worst in those years.
So, don't get carried away with the negs you currently cannot conrol in the printing process. Take your time and learn more of how-to, and see what other options are for you. Changing paper, lens, contrast filters is essential for quality improvement, but not when your prints look extremely poor like the ones posted earlier.