As you seek Him through prayer and His word, your relationship and love for Him will grow larger and you'll only want to honor HIM and not yourself or others with your decisions. Your purposes, desires, goals, etc will change as you grow to love Jesus more than yourself and your "life".
Faith in "circumstances" will always leave you frustrated, anxious, fearful etc. I was this way for a long time. If something came up into my life that scared me I'd allow it get the best of me. But what God teaches us is that if we keep our "anchor" of faith in HIM and not CIRCUMSTANCES, then we can rest assured that although the storms of life may rock our boat, they will not relocate us. Why? Because placing your faith in Jesus Christ will keep you being overcome by life.