I have trouble praying because I don't have any guardian entities in mind, and the thought of praying to the everything/driving force (which you would call god, but I don't yet understand it as sentient) makes me feel uneasy.

I see that "god" more as a force, like gravity or electromagnetism. When I drop a pen, it falls to the ground. I could worship the force of gravity because it causes change on earth, but to what extent would this prayer be answered?

So my image of "god" is simply a huge force field which produces planets and life. But not necessarily a conscious field, something you could talk to. Maybe my perception will change in the future.