Honestly, you've done just about all that is humanly possible in tight woods at that yardage! You could spend, (waste) lots of money on pretty much useless scent blocking gimmicks but, that's about just about what they are- gimmicks!
Everything else is up to you!
Using any good camo clothing, don't put them on until you are ready to hunt, so that they don't pick up any last minute odors.
Use local, natural cover scents, if at all.
Learn to use the wind to your favor.
Be as still and quiet as possible.
Using the above, I have successfully hunted deer within "baseball bat" range while sitting on the ground, using the available cover! You will undoubtedly get busted now and then! I also have been busted by deer that I know did not see or hear me at 100+ yards, when the wind shifted at the wrong moment! But you will have success if you stick with it! Good luck! Oh, and welcome to the board!