Don't doubt their existence
I had made plans to get some food at a shopping plaza with my friends and shortly after, they left. Not knowing what to do, I ended up going to the Barnes & Noble across the street and walked over to the "New Age" section.
I found a book that spoke about angels and their positions in our lives and in seconds, I felt secure to call to them and thank them along with calling for their guidance.
Just as I was asking for Archangel Raphael's healing powers for my family and myself, in my mind, I could see a divine green light that gave me peace and bliss. Keeping that in mind, I continued reading and found that people who reported seeing him described a green emerald body of an essence and at that moment I knew I had an angel encounter.
The next one occurred while I was asking for Archangel Jophiel's protection from negative thoughts. I saw an illuminating orange/yellow light best described as a golden essence. After looking up what Archangel Jophiel's color ray, I found it was accurate. At that moment, I never doubted the Angels again. They are just waiting for us to call to them because they want to help.