If you want a shiny, you have to be dedicated. I've had a lot of chains break high but no shinies but I keep on trying... My luck is low but I can still get them if I try hard enough. If you just can't chain right and tutorials don't help, try soft resetting then. You won't even be thinking about it and a shiny might pop up. If SRing is too boring for you, then just play the game and stop worrying about it. Hatch or train a team while listening to some music or whatever and a shiny may pop up unexpectedly like that too (which you might want to carry a few masterballs around then since that's real annoying when you aren't prepared). If you're just too desperate or lazy, trading/hacking is your only option left. I think both of those suck because having the shiny isn't the main deal. Getting something super rare on your own the legit way is the best feeling. So good luck but you don't need that. ;D
500th post yayz.