I had this problem for the first two seasons I hunted. I would never see deer. That's when I began paying attention to where my scent was blowing in relation to where I was watching. It may be good where you expect to see them but is it blowing on their incoming trail. Also I learned to stay out of clearings. Accept the fact that you might only have 30 yrds of visibility and 15-20yrds of clear shot distance. I also began having success going mobile. Find the freshest sign set up your stand and come back next morning a couple hours before daylight and wait until at least 12, but try to make it till 3. Always be ready! In a close quarter spot when it happens it's going to happen fast! These are not tips from a pro just things I've done to become more successful.