"It was an emotional roller coaster," he said. "I went through little rough patches where I kind of got discouraged, kind of got a little down. But at the same time, I had to step back and realize I wasn't as ready as I thought I was.
"Now, I feel like with these bowl practices, and even with this season, because each week it's not like I was redshirting, I was there in every meeting, there in every game. So I kept hearing things and now the system is like second nature.
"So that's why I say next season — spring and fall — should be big for me. Because I can play how I want to play."
Brian Stewart, who will now coach the safeties at Nebraska after spending this season coaching Jackson and his fellow corners, perhaps best explained the young player's progress in mid-October.
"When you're a young guy like that, you don't know what you don't know and you just want to get out there," Stewart said then. "You've been doing this since you were 9, 10 years old, so you're just like, 'Throw out the ball, throw it to me. Let me go out there and do it.' And you still got to do it in the parameters of our defense, you got to do it the way we ask you to. And he's learning that."