It seems there are many variations out there for the Seven Sorrows of Our Lady Chaplet, and my wife and I have been praying it for our bedtime prayers, but we are struck by the many different ways of praying it and are unsure which is correct.  The mysteries themselves aren't an issue, but how to start and end.
We've been starting it like the Rosary, Apostle's Creed, Our Father, 3 Hail Mary's, and the each 7 bead decade with their corresponding mystery.  We end with Hail Holy Queen.
But some versions don't do the Creed but Act of Contrition, which I like since we're doing it at bedtime.  But what is the right way?  Thank you 

There is an old Servite publication which is very useful.

There is an old Servite publication which is very useful.

This is the correct way to pray the VII Sorrows Rosary IN THE CHURCHS  of the Servite Order.
H O W E V E R
According to the larger Servite Manual, Behold Thy Mother on Pg 175 after the above method it states:

"N.B. -  The Stabat Mater and the prayers which follow, though generally added when the Crown is said in public, are not necessary to gain the indulgences; it is enough, after the three Hail Marys (at the end) to say the V.  Pray for us, and the prayer, Grant, we beseech.  The act of contrition, in the beginning, must express the purpose of going to confession, unless one has already been.  Any form may be used for it."

It is common practice of the Servites when praying the Rosary, (not publicly), after each set of seven Hail Mary's to pray the following Strophe:  instead of the Glory be like the Dominican rosary.

Holy Mother pierce me through
In my heart each wound renew,
Of my Saviour crucified.

Below is an Act of Contrition we print which I've copied from another Servite book.