Well done Wolfgang! I just found a version in the Irish Traditional Music Archive. Very similar to yours:

Eighteen Years old

I am eighteen years old today mama and I'm longing to be wed
So find for me a young man to be with me, she said
Oh find for me a young man to be with me at night
And I'll roll him in my arms, he'll be my heart's delight

Oh hold your tongue, dear daughter then, or your cause I will pull down
Your silks and satins I will pull down, you will wear your morning (?) gown
I'll send you to the meadow for to reap and mow the hay
With your pike and shaft all in your hand, you will stop this drinking tea

Oh hold your tongue, dear daughter then, I was forty before I was wed
Although it was too late, I found it was no weight for to carry my maidenhead
That may be the way for you, Mama, but it isn't the way for me
For I'm young and very light and crazy, and married I long to be

Hold your tongue dear daughter then, and I'll find you a man
A man for me, Oh mother, she said, you must hasten, you must and can
The sooner the better, o mother, she said, you must hasten a man to me
For I'm young and very light and crazy, and married I long to be

Regards