That's so nice of you. Put in a little work, and you'll be rewarded with a lifetime of love.
I agree with DvlshAngel985 (now that's a first!
). The predictable pattern will make it a lot easier. Mine go out within minutes of their meals, then they get walks at two regular times during the day. And when she goes outside, PRAISE, PRAISE, PRAISE and give her her favorite treats.
Also, don't scold for failures. If you catch her in the act, a simple NO followed by a trip outside is good enough. If you don't catch her in the act, roll up a newspaper -- and swat yourself in the head. It's your fault! But seriously, if you don't catch her in the act, it's too late even for a NO.
You might also seriously consider limiting her freedom to save your carpet while she's learning. Set up an X-pen in the house with her bed on one side and a pee pad on the other. Continue to take her out at regular intervals, but at least if she makes a mistake in there your carpet doesn't suffer.
Let her earn her freedom. Once she starts using the pee pad -- or holding it for the trip outside, you can expand her territory. Once she's fully trained, she can have the run of the house if you want.
Good luck! You've done a great thing.