The Cancer Sun and Scorpio Rising are both emotional water signs. So the passion and intensity of Scorpio, coupled with the need for security and romantic and nurturing attitude of the Cancer Moon do cause you to feel very deeply. There is some relief with having a Sag Sun, as it's a fire sign and independent, like Scorpio, but you should have varied interests which allow you to escape worry about relationships at least part of the time. Also, seven other planets are in zodiac signs, so you could have other Cancer planets or Scorpio ones, contributing more to emotional drama. Information downloads sound more Gemini to me, I wonder if your Mercury or Venus could be there. Planets in Gemini do cause info overload. Either way, I do think there is hope.
Scorpio Rising is the way people view you, at first when they are just forming an opinion of you, but later, it's still a big part of who you are. Scorpios don't waste time on people who aren't worth it, so this ascendant can also be a way to screen out people who make you feel over-emotional in relationships and aren't worth the drama.