Hi! When I was about 16 yrs old, I was napping and was slightly woken up by this bright figure. Could this have been an angel or something?
I once had a vision in which I saw an Angel. At the same time as I saw it, I felt a tremendous ecstatic feeling which I can only describe as like the way in which books on yoga philosophy describe spiritual enlightenment (samadhi). From that point on, I became convinced that they way to tell whether a being is an authentic angel or not is whether its presence causes samadhi. With maturing years, I have come to believe that in a certain sense, the samadhi is the Angel.
So to answer your question directly – was what you saw an Angel? Well, think carefully about how you felt at the exact time it happened. Did you feel excited, exhilarated, surprised, astounded, or anything else that could be described as noumenal? Or did it just pass you by like something fairly unremarkable? Ultimately you will know yourself whether your experience was genuine.
Also, I don’t see spirits anymore like I used but oftentimes I see glimmering orbs. What would this mean?
If you can see them floating in the actual air in front of you, they might be manifestations of some kind of spirit. There are different kinds of spirit that could appear in such a way, for example it could be an elemental or nature spirit. I tend not to believe that the spirits of dead people appear in this way, as if they made a successful transition to the other side, they would not be hanging around the physical plane in this manner. The exception to this was if there were something wrong, in which case it could indicate that the spirit needed help in making a successful transition.
If, however, the orb just appears as a spot on a photograph, I would strongly advise against reading too much into it – apart from a peculiarity in the way that the camera has captured light reflecting off a dust particle.