Try putting some of that EverCalm stuff on your boots. It comes in a deodorant stick type of applicator. It's harvested from the bedding areas of them on farms. And definitely get a 3D Leafy suit, or a Mesh Ghillie Suit of appropriate coloring pattern for your area. Also mesh facemask. Be super stringent with your scent control protocol! If you have to hike in... change out of your sweatied-up shirt before you hike in the last bit to the spot. Maybe even carry a large ziploc to stuff the sweaty one into down into your pack. I leave the sweaty one sprawled-out to dry on a particular bush far away from my spot and pick it up on my way back out.
You'd be amazed what you can get away with if you learn how to hold still and freeze. I took 14 minutes of video of a Doe and her young one with nothing in-between us... just the leafy suit! 17yds away broadside at closest point!
And if you're doing bow, make damn well sure to range all the objects you can see around your spot so you already know the distance of all of them ahead of time! And if it's a distance like say 25yds... then make damn well sure you're aiming on him with the mid-point BETWEEN the 20yd and 30yd pins! Do NOT be fooled into thinking that because it's so close that you can just use the 20yd pin or the 30yd pin. That will NOT WORK, and you will be extremely upset with yourself when it misses!
P.S. from the sounds of your story, sounds like the wind is not quite right at the spot you've picked. Or you're not being good at freezing still when needed. Make sure you pay attention to how the winds change during different times of the day at the spot you're focusing on. Learn how the winds change and around what time they change, so you can anticipate that and move to a slightly different spot in the same general area where the wind won't give you away. Also spend some time ahead of time grooming the areas you want to sit in. Clear away the oak leaves, cut away branches that might impede your shot opportunity.
Whenever possible, draw your bow or raise your rifle to the ready when their eyeball passes behind a tree, or when they lower their head to the ground to graze. They can see motion even better than you can. If you begin to move when there eye is up and you are within their visual FOV, you'd better just start hurrying the hell up and trying to rush getting on target 'cause they aren't gonna stick around once they've spotted you.