Roaming thoughts are normal during Centering Prayer.
Don’t let them discourage you from your practice.
Roaming thoughts are another opportunity for you to practice returning to the Present.
Even if you must return over and over and over.
Over time you might notice that you have less roaming thoughts during Centering Prayer.
You seem to enter the spaces between thoughts.
The practice of returning to the Present during Centering Prayer can be used during your non-silent times too.
Centering Prayer is great practice for living in the present where we focus on daily tasks or simply enjoy life!
Let me know if I can help.