I use a ghillie jacket and improvised ground blinds. Got it last year.Love it! I like to have a "screen" directly in front like a large tree so I can draw easier without being seen. make my setups in the summer. Killed a doe at 17yds this way last year with a self bow, and had several blown chances at close range this year. Everything from a high shot (she was downhill...grrr....) to blundering gun hunters, to a coughing spell to fidget busted..
I've killed about half a dozen small bucks/does from the ground at 20 yds or less, but only last years was a selfbow kill. I hunt heavily pressured public land, So i try to Get'em early,ain't picky.
Being comfy=less fidgeting. Have some butt padding. I take my ghillie in a backpack with extra padding and sit on it when I set up. Wearing a ghillie on the way in is pure folly where I hunt - lots of greenbriers, plus too hot in early season.
Good luck, watch the wind, of course!