Well how about if you retained your memories of this world when you joined Middle Earth. That was surely the point, as if you didn't retain them then Middle Earth would appear to you to be no better or worse than this one, as you wouldn't know any different.
But if you did retain your memories, you would become very frustrated. Why would you want to do things the hard way when you could do them the easy way if you had electricity? Also hygiene standards would be pretty abysmal.
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For forty days and forty nights
They rode through red blood to the knee
And they saw neither sun nor moon
But heard the roaring of the sea
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