Use inverted exclamation marks at the beginning of a sentence OR at the beginning of a clause that you wish to make more forceful. Example at the beginning of a sentence: ¡Me gané la lotería! (I won the lotery!) Example at the beginning of a clause: Reprobé el examen, ¡maldito sea! (I failed the exam, damn it!) Your sentence is like my second example. That is, the proper place for the inverted exclamation mark comes at the beginning of a clause, not at the beginning of the sentence, because the last clause of your sentence would normally be spoken forcefully.

You use the inverted one to open an exclamation and the normal one to close it. This way you could know where it starts.

when writing in Spanish you have to think how it would sound if you spoke the same thing. the "¡" and "!" are around the part that you are yelling at someone :D OK, that's not how it is in grammar books, but that is an easy way to understand and remember!

signo de apertura - ¡ , signo de cierre - !

In Spanish we have the exclamation mark at the beginning and at the end of the sentence. In other languages you have the exclamation mark only at the end. That hasn't any technical name. An the sentence will be: Soy un poco de un nómada , probablemente porque mi padre estaba en el ejército, ¡y éste se mudaba de casa cada 3 años !