Twin Moms - how long did you need daily help?

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My question is this... how long did it take for you to feel like you could manage your twins daily on your own? I'm expecting twins in October and am fortunate to be able to stay home with them after their birth for as long as is needed. We also have family willing to move to the area to help. How long will I be needing their help? I'm just trying to get a sense of end date for their extended stay. Help is great, but family can be stressful!