Or...if you absolutely must complicate things then look up the "Rite of Abramelin" on Google and see if you're up to fasting and isolation for half a year and yeah, you'll start "seeing things" all right!
Your guardian angel(s) is/are always with you. It's just a matter of opening your eyes to seeing what is there. Prayer and meditation will work, so will fasting - it doesn't have to be a long fast, say 24 hours. But it may take time. It's all about faith, the prayer and fasting should build your faith to help you open your eyes. And, I say prayer and meditation because after you pray, you should meditate to listen and see.
Also, check out the book THE PSYCHIC WORKSHOP by Kim Chestney.
It follows a Christian slant, sure, but it's a wonderful book to have in your library. It talks about ways to open your senses so as to commune with your guardian angels and, thus, open your intuition and psychic receptivity.