Why do I fall asleep in every guided meditation?

I use guided meditation for my anxiety, but I fall asleep within minutes every time, no matter the time of day. I'm told this is related to a sensitive, emotional nature that seeks escape. Is this a form of spiritual escape or emotional repression for my sensitive soul? Or is my body just physically exhausted from depression and forcing the rest it desperately needs? Name: Tanvi. DOB: 9th May 1991. Time: 8:15 PM. Location: Chennai.