The simplest way of calling for help would be to light a candle and explain your situation to deity. No fancy chants or waving around of tools. Just spill your heart out to the God and Goddess (or whoever your patron creator spirit is).
Another option is to do a meditation. Imagine you're knocking on your spirit companion's door and again, when the door is answered, explain the situation to them.
Hope that helps, even if it gives you ideas :)