The 18-year-old cyclist enjoyed a medal laden past year both on the road and track first winning gold in the individual pursuit and team pursuit at the European Junior Championships in July.
She then claimed double silver and bronze at the world equivalent before turning her attentions to the road and upgrading her global junior time trial silver from 2011 to gold in Limburg.
Barker stepped up to the senior track circuit less than a month later for the opening World Cup of the season in Cali and claimed team pursuit silver as part Welsh Cycling's trade squad Team USN.
She joined the British team and Olympic champions Laura Trott and Dani King on the way to gold in the same event at the second World Cup at the Sir Chris Hoy Velodrome in Glasgow.
Preparations for her third and final World Cup appearance in Aguascalientes back with Team USN have been disrupted by a virus but that hasn't quelled Barker's determination to build on a successful 2012.
"We were supposed to have a camp for about three or four days but I was ill over Christmas," said Barker. "I had a bit of a virus. I had about 10 days off but I feel I have come back to it a lot better than I thought I would.
"I don't feel as strong as I did before I was ill. I'm managing to keep up with the girls [Amy Roberts and Ciara Horne] but they're on such strong form at the moment that it makes it quite hard.
"I've got a quite a big goal coming up in the next few months on the track. I've got some big goals coming up quite early which is really exciting me and motivating me."