Hi,
the question is: what did you do with your existing synths: using mainly presets or did you also program sounds "from zero"?
Your problem is probably no Nord issue but the topic of programming classical synths with the tools and means of classical (subtractive) synthesis: A Minimoog didn't have menus, presets or samples but oscillators, filters and envelope generators. The same in alle the Nord Leads and similar virtual analogues.
My tips:
a) Read the manual (see point 9) - several times
b) look for literature or youtube tutorials
c) build yourself a "basic sound", i.e. a program with one layer/slot, one oscillator, no modulations, open filter, open envelope (and store it!) - this can be your starting point for any "experiments".
d) most important: Just turn the knobs and press the buttons - hear what effect it has and learn!
Don't forget: We all have started once.
You have already done the very first step: participating in the Nord User Form - there are so many persons with know-how and experience! Just ask!
Btw: Hello to the forum
(Oh: Marlowes was faster than me...)