Well, I listen to him. He tells me what I am doing wrong in several different ways. I read what he says in the Bible. I know some feel that is archiac and written by men but I have a hunch he has ways of getting his idesa in print fairly accurately being God and all. Second, There is a kind of sense or feeing that you get from being close to God that just tells you this is not a good idea. You can ignore or override it of course. But if you really want to know and stop long enough to listen it is there. Thrid and probably last with a grain of salt. I listen to the judgement and advice from people who I respect and feel that have a closer relationship with him. Between all of that and finally talking with him directly I can get pretty darn close. I will have to warn you though. In all fairness, his will is usually the thing I least want to do.
By the way, I was listening to radio on a long drive today and the song Desperado by the Eagles came on and as I listened to the words I could not help thinking of you. They are actually posted here somewhere, I think teen forum in a song lyrics post.
This probably does not help you. but I felt I owed you an honest answer.