Right now I'm playing a sneaking archer with perks in both those trees. It's not a build I've ever played before and I'm greatly enjoying it. I have three techniques which evolved that have stopped my Altmer becoming overpowered.
1) Play on Master. This way enemies take less damage even with your successful sneak attacks.
2) Once you hit 220, you may not put any more stat points into health. Enchantments are permitted, but no perks in enchanting. This way, successful sneak attacks are pretty damn important because if even one enemy sees you and gets close enough to hit you, you will die. Large groups of enemies are more of a challenge now.
3) Get a dog. Dog's aren't sneaky. The slightest threat and they go charging in barking their head off, alerting all and sundry to your presence.
Seeing as you are on console and can't make your dogs essential, you'll probably end up killing any dogs you have unless it's Barbas, unfortunately. Maybe you could get an unsneaky follower instead.