you can only plan and be prepared so much, same as any type of r/ship.
you can read up on the practical side of things which interest you,which is imo is always a sensible thing to do,joining forums such as here and talking with others can be of help,
its not always a good idea to have too many ideologys and expectations to begin with that can often lead to disappointment, go in with an open mind, never say never its suprising how things develop and change over time.

and until you meet somebody and begin a r/ship there's nothing much you can plan and prepare for, as others have said take your time,be totally honest with any potential Master and be honest with yourself too, go slowly no-one will expect you to rush in or 'know' everything and just remember there's no wrong or right way only what works for you.

good luck, and have fun