You can know the will of God by simply following others who have gone ahead of us. Such people have expertise in certain fields and can transfer such skills to others. They possess experience in certain fields and can help you make informed decisions.
Before you follow anyone or listen to anyone, prove them; test them and their life style. Do not just accept them without confirming for yourself.
If someone say one thing and you accept such person as your mentor or your leader or your counselor, this is not smart. Test every words you hear, test every person to be sure you are not led astray. This way, you confirm everything for yourself and you are confident in what you believe.
Moses (in the Bible) “transferred” his Spirit to others. Jesus breathe upon His disciples, and Paul asked the Corinthians to follow him. There will always be someone who knows a little better than you do-who has gone a step further than you and can give you guidance so that you do not miss it.
Find your spiritual guidance, leader, counselor, mentor and you will most likely find God’s will for your life through their directions.