I recently moved back to film for certain types of pictures. However, I would never want to give up my digital gear. To me, this isn't about film vs. digital, but horses for courses.
The nice thing about film and M-style cameras is their simplicity. You have (more or less) one exposure measurement mode, maybe an AE mode and (most probably) manual focusing. Also, you 'choose your sensor' ahead of time by selecting a certain film (and maybe EI plus developing workflow).
So, the basic operation of a film camera is generally a lot simpler than that of a sophisticated DSLR. That's because in a DSLR, you have a lot of added complexity: Autofocus can be configured to work as one-shot or continuous, it can be configured to work well for fast or slow-moving objects, to work well under low light or to concentrate specifically on faces.
The same applies to 'film choice'. You can preset sensitivity or even how sensitivity is being changed automatically. You can set for tungsten or daylight operation, or even for fluorescent light. Have you ever heard of a film specifically optimized for FL light? You can even determine if you want neutral or vivid colors.
I could go on in this context for quite some time, but what it boils down is that a DSLR is a lot more complex than any film camera we came to love. And thus, DSLRs have a much longer and steeper learning curve than film cameras.
Mind you, if you cared for wet lab processes and the inner workings of film chemistry, or all the tricks people developed to rapidly focus their RF cameras, you might arrive at the same complexity. But to get there, you'd have to include a lot of things you would previously not have considered as being associated with the camera (such as e.g. a lot of filters).
So, take your time, and get to know your wonderful D700 camera and its lenses. Discover the meaning of the various functions, and see what they can do for you. Discover the functions you won't ever need, and stop worrying about their menu branches. Take your pick of functions that support your shooting style and configure those functions into your quick-access user menus. Also, get a grip on digital image editing software.
How can you hate something you don't fully know yet?
PS: I work in a business in which I am at least a decade older than virtually all of my clients. I think that's helpful, because I am forced to learn something new every day - still today. That sort of keeps me alive and ready for new challenges.