Do guardian angels exist?

I really need to know if guardian angels are written about in the bible and if they really do exist to help us? I really don't want to go into my angel story, because it's very long and quite strange. I'm not sure anyone would really believe me. But what brought me to this site was some recent, very strange occurrences, that happened during a very stressful time in my life. Things that were more than I could bear. I truly believe I was helped by a higher power at that time. Afterwards a commercial came on TV that I've never seen before, advertising this website. I came here not knowing why but for some reason I think I'm suppose to be here.

Does any of that make sense? So I've been hanging around for a week trying to figure out why I'm suppose to be here. I don't know, maybe it's just to learn. Or get me in the right direction. I'm a 51 year old female. I've been divorced for 20 years and chose to spend those 20 years alone in order to raise my child. I've always believed in God and do go to church on occasion, but haven't attended church regularly since I was a kid. I would like to learn more but really do not know where to start. Right now I guess I just need to know if I am crazy or did I really have an experience with a guardian angel? Do they exist, or exist for someone like me?