[Duplicates and SSD filled up !]

Android Pixel 3a

Key point is that computer FILLED UP after I got Pixel and installed some programs to control it. Maybe it has something to do with the problem?

Emails still coming in twice. Maybe I can figure that one out.

[Duplicates and SSD filled up !]

I have a 240GB SSD and never used more than half of it. About 2 weeks ago, I switched from iPhone to Android and downloaded some programs to access and store phone stuff. I don't know it it has anything to do with my problem, but yesterday I noticed that I'm getting warnings that my drive is almost full! 

BUt it reports it at almost 500GB???

Any ideas on what I may have done to myself???