Here in Iowa the weather is extremely capricious. One year we had a day in March reach 90 degrees; 2 days later it was below freezing again. Some years we plant in March, and other years it snows 6 inches in May. We never know what to expect.
Jesus Christ is the same yesterday, today, and forever; he never changes. We are supposed to be "changed from glory to glory" to be like Him, but not "tossed to and fro, and carried about with every wind of doctrine." A person who changes his beliefs and way of life to please other people will always be changing and always confused because it is impossible to please everyone.
It's important to know that what you believe is the truth, not because someone else said so, but because you know for yourself. As Paul said, "I know whom I have believed and am persuaded that he has able to keep that which I have committed unto Him against that day."
People are often well-meaning but misguided. Listen for good advice and ways to improve, but take everything with a grain of salt and weigh it prayerfully against the Word of God. You will be miserable and regret your decisions if you change your life just to make others happy.
People fail. Trends change as quickly as Iowa weather. Don't base your beliefs solely on what other people say; if you do, you will be disappointed. There will be a new trend tomorrow. Base your beliefs on the Word of God. Keep your eyes on Jesus. Jesus never fails. He is the solid Rock and foundation on which we must build our lives.