Reaching For The Stars And Keeping Your Feet On The Ground

When I am thinking of my huge goal for this year (100k), I feel like I’m really believing it and I feel all “high-vibe” and I love this feeling!… but then and this could be days later I feel like I’m floating around in La-la land and have lost touch with reality. Is there a line between believing hard and not being in touch with reality? Or is that how manifesting works? Thanks 🙂