...and only then should you bother worrying about the things that you are unsure of.
God has given us 1000 things to be obedient in already. And that is just through one command.
In every decision that you make, you must go back to this one command and ask, "What will be the most loving action towards God?" or put another way, "How can I demonstrate the work of the Spirit the best in this decision?"
Rest assured that any promptings from God, anything that He has laid on your heart to do, will not contradict this greatest of all commands. But remember to start with what you know for sure - and to do this you need to know inside and out His revealed will.