You can only distinguish genuine men and women of God if you know God’s Word. Your eternal life is too precious to just stay on the advice of someone. Go direct to the source and seek the truth yourself. Read the Bible !
“For such people are false apostles, deceitful workers, masquerading as apostles of Christ. And no wonder, for Satan himself masquerades as an angel of light. It is not surprising, then, if his servants also masquerade as servants of righteousness. Their end will be what their actions deserve.” (2 Corinthians 11:13-15)