in your opinion what exactly is the difference between the spirit of God , the holy ghost , our spirit and other spirits within us?

In gen 2:7 the bible says " And the lord God formed man of the dust of the ground, and breathed into his nostrils the breath of life ; and man became a living soul." Now trhe holy spirit is a totally different thing as shown in acts chapter 2.

Now you said "Even the spirit can sin" are you talking about the soul that God breathed into us in the first place ?