Elizabeth Pelton says she felt like "the little kid in a candy store."

From a swimming standpoint, why wouldn't she? She had just finished second in the 200-meter backstroke final at the Phillips 66 National Championships on June 25 and swam a personal best for the first time in almost three years.

It was about as sweet of a moment that the swimmer from Towson remembers, for about one year earlier at the United States Olympic Team Trials, she was on the brink of a nightmarish meet that would change the path of her career.

But that is in the past now. Starting on Sunday in Barcelona, Spain, the 19-year-old Pelton will swim for the United States in her third straight FINA World Championships. She will compete not only in the 200 backstroke, but also the 100 backstroke and 4x100 freestyle relay.

As her roller coaster journey culminates this week, she concedes that she couldn't be more excited for this next meet.

"I really think I have a chance at doing something special now, possibly medaling or finishing in the top five in Barcelona," Pelton said. "But there's no doubt, at the time of Olympic Trials last year, it was pretty devastating."

For any swimmer on the brink of making a senior national team, placing third in finals is mostly never a good thing. Only the top two typically advance. As Pelton says, "There's something about getting third that's a stick in the gut, and it does not go away."

When she arrived in Omaha, Neb., for Olympic Team Trials last year as a national team veteran at the age of 18, she had no reason to believe she would be in that position.

She made the world championships team a year earlier by finishing second in the 200 backstroke. Before that, she was a finalist in the 200 back at the 2009 world championships and a silver medalist in the 200 back at the 2010 Pan Pacific Championships.

But then, the results played out otherwise. In June 2012, she finished third in the 200 individual medley. She missed making the team by 0.26 of a second.

She still had her best event remaining, but it happened again. Three days later, in the 200 backstroke final, she finished third and failed to qualify for the Olympics completely by 0.49.

From there, she went back to the drawing board.

"It seemed like it was just not meant to be," Pelton's mother, Anne, said. "We made sure to make her know that, no matter what, we love her and support her. Tomorrow's a new day, and she needed to realize that everything was going to be OK and people were still proud of her."

Pelton returned home to Towson and took the next five weeks off to clear her head, while her peers swam in London under the world's watchful eye.

Luckily, a change came with perfect timing. In August, Pelton left for Berkeley, Calif., to start college at California. The move also gave her a new coach, Teri McKeever.

"It's really difficult to comprehend the type of disappointment that comes with finishing third at Trials," McKeever said. "But when Elizabeth got here, she had to put that behind. She was very open to it. She's very easy to coach."

She got into the groove of balancing morning practices, classes, homework and her social life. After getting into a routine and making new friends on the team, she regained the focus and drive she used to have when she trained at North Baltimore Aquatic Club.

Regaining a competitive edge came easy, too, having Olympians Caitlin Leverenz and Rachel Bootsma swimming next to her every day.

"Getting into this new routine took a lot of pressure off swimming and helped me be more relaxed in the pool, and I think that's helped me keep my nerves down," Pelton said. "Heading into world trials, it wasn't going to be the end of the world if I didn't make it. People say moving to California changes you. I think there's something to that."

As her freshman year went on, the accolades piled. She won the 200-yard individual medley and 100- and 200-yard backstrokes at the Pac-12 championships.