I am probably older than a lot of people on this site (being in my middle 40's), but for me, the 90's were about smugness and apathy at the start. "We Won the Cold War! We're #1!: And then towards the middle of the Decade, we started to become the target of Domestic and Foreign terrorism, what with the Bombing of the Alfred P. Murraugh Federal Building in Oklahoma City, the first bombing of the World Trade Center by a Fuel Oil Bomb and the resulting suspicion of and backlash against militias, and later, foreigners because of the World Trade Center Bombing. It sort of defined for me that the next threat to the US would not come from any nation, but by small groups or individuals.
But even though these things happened, the idea that no one could really affect the US in the same way that other countries were also experiencing terrorism made us complacent and probably led to even greater shock in 9/11.
I wasn't big into music in the 90's, at least, not like I was in the 80's, And yeah, I did watch "after school" and "Saturday Morning" cartoons still, when I could (I was working at the time, so the whole "not having much time" was a thing for me, then. I did get my first computer in 1991, and played a metric ton of really good games: Civilization, Civ 2, Command and Conquer, Taskmaker (the first game I ever owned for the computer), The Exile Series (the originals, that is), Baldur's Gate and Tales of the Sword Coast, the SSI Gold Box Games (Pool of Radiance, Curse of the Azure Bonds and Secret of the Silver Blades, and then, Pools of Radiance). Dark Queen of Krynn, Crystal Quest, Burning Monkey Solitaire, Sim City 2... well, you get the idea.