If you're struggling to manifest, think about how you're feeling every day. Think about the way in which you live your life. Are you generally stressed? Happy? Angry? Carefree? Elated? Overwhelmed? Whatever you're consistently feeling is what you're manifesting.
Manifestation does not happen in the 5 minutes a day you dedicate to visualizing. It happens in the moments and in the thoughts you have while you're living your life.