You can draw the sigil on a piece of paper, and just meditate on it with the intention that Glay’yos will hear you. It might help to listen to ambient meditation music, theta brainsync music with headphones (youtube has many free tracks) or shamanic drumming music. As you feel yourself relaxing, share your feelings with Glas’yos and ask for his help in lifting the anxiety and depression. It doesn’t matter if you don’t see or feel a manifestation, being depressed messes up your biochemistry, which affects your subtle bodies and can stop up your senses so it’s hard to See, but that doesn’t stop the spirits from seeing you and being there.
Another technique that worked for me, was to set up a chair next to me, and in a meditative state again, visualise my depression as it’s own being that moves to sit in that chair so I can see it and talk to it. I drew a picture of it afterwards in my journal, it looked like a roughly man-shaped being made of snot, with teeth. What was shocking to me, after I could look at it, was to realise how much it hated me… It actually snarled at me. I then visualised it dissolving and all it’s energy being sent deep into the earth to be recycled and felt like light was able to shine on me again. With what I know now, I may have been clearing a parasite without knowing that’s what it was.