And with more first team club appearances than anyone else in the England squad this season, Burns hopes to transfer his hot domestic form onto the international stage in Argentina.
"The season really finished on a high for me at Gloucester so I'm hoping to take the confidence I picked up there and the skills I've learned into the England side," said Burns who will start at fly-half in the opening game against Argentina.
"I didn't play too well in the Six Nations but I've bounced back strongly and I hope the last couple of months have benefited me.
"Playing for the Under 20s is different to playing for your club in as much as you're a young lad appearing in the Premiership and maybe not too much is expected of you, whereas with England you're in the spotlight trying to make things happen and everyone's watching you."
England, who kick things off against the Pumas before meetings with Ireland and France in their pool, arrived in South America as second seeds after defeats in the last two finals by New Zealand.
But Burns believes England have the wide range of talent in their squad to challenge again and possibly go one better this year around.
"From one to 26 in the squad everyone's capable of doing something really special and that makes us a dangerous team," he added.
"We've improved throughout the season and we attack in lots of different ways. Sides should never know what we're going to do next.
"We've got players all over the field who can make an impact and that might mean runners out wide but it also means the forwards passing and offloading."
Ireland start their tournament against France and coach Allen Clarke has named the same starting XV that beat Scotland 44-15 in March to seal the RBS 6 Nations under-20 title.
Flanker Rhys Ruddock captains the side and said: "We've been working towards this for a long time, since the end of the Six Nations.
"I suppose there's expectations of us to do well in the tournament, because we performed well in the Six Nations.
"We're in a very tough group, three really difficult games to start off. Any of the teams are capable of beating each other.
"Although there's expectations, there's a sort of realistic understanding that it could go either way in any of the games."
Elsewhere, Wales kick off their campaign against Samoa at Parana before going on to play Fiji and holders New Zealand, with coach Phil Davies eager to test his side on the world stage.
He said: "We are all really excited about the prospect of playing in a great championship against the best opposition in the world at this age group.
"This is the kind of challenge we need in order to keep improving as coaches and players.
"A lot of hard work has been done already and now it is just a case of getting on with it and playing rugby."