Me [31M] with my Japanese wife [27F] of 1 year (together for 7). She's become heavily codependent and the stress of taking care of her is wearing me down.

After being together overseas for 6 years, my wife moved from Japan to the USA to marry me last summer. Since then, she's become a shut-in with crazy social anxiety who doesn't want to leave the house, talk to anybody, or even see anybody. The only time this changes or improves is if I'm around. She literally calls me her "safety blanket".
Now I was willing to help at first to get her started integrating, making some friends, and so on, but after a year I can't take it anymore. We need to get quarters from the bank to do laundry? She can't do it. Need to get a couple items from the grocery store across the street for dinner? She can't do it. Go to the post office to drop something off? She can't do it. She can't even do tasks that don't require any human interaction at all, like activate a bank card automatically over the phone.
I have a very demanding and high-stress job and having to come home to manage her after working all day at the office is literally killing me. I've been diagnosed with psoriasis and as of about two weeks ago I started having dizzy spells. Her depression, sadness, and general attitude are like a black hole sucking me in.
She's agreed to start counseling, so that is a big step in the right direction, but what I'd like to know is how can I behave in a manner that helps her become more independent? I'm Mr. Fix It who swoops in to do whatever needs doing if there's a problem. How do I encourage her to try and fail in a safe way? How do I take care of myself in this situation?

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tl;dr: Wife is depressed and extremely codependent. How do I deal with this?
Edit: Thanks for the comments everyone. This is all very helpful! Will try to respond to everyone as time allows.


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