Maybe I can share some advice... I've played Discovery before, back in both 4.84 and 4.85, and I absolutely love what the mod does with the game. Each time I've come back, it's been with a completely new account, starting from scratch because I've been away so long.
One piece of advice, though, when you go into a system as a capital ship, or even a gunboat or fighter, you should send out a system wide message to let the owners of that system know that you're passing through. If your corporation/faction/etc doesn't own the system, it is always a good idea to extend that message into one asking for permission to pass through. In my experience, simply the act of asking is often enough to convince the police/military presence in the area that you're not a threat, and obtaining that permission is often vital to a safe passage, as most police/military that come across an unknown military craft in their system will challenge its presence there.
~I once was an artist, who painted with words. Now, I am but a writer, who speaks for all~