I made a tripod out of of a dixie cup and a plastic coffee lid with some tape and a knife to assemble it. I go out side, put my phone on a self timer and take the pic. You can do it too! (I just don't wanna be left with a shitty blurry mirror pic)
You should really lurk more. stacking is letting your jeans sit naturally, when they're a bit long, making "stacks" where the denim sits on top of itself. cuffing refers to folding up the hem of the jeans/pants.
You wanna know what to do? A. return the shirts, both of them. B. hit the gym. C. find a decent tailor.Sorry if that sounds mean but it's just about the best advice for you unless you wanna just go MTM.
I can think of many things. a two dollar pair of Uniqlo socks with $7 shipping. a streamlight nano off Amazon for $6 (useful to have a small flashlight on your key ring) or maybe a card multi tool that you can keep in your wallet. Just off the top of my head.