The prop featured in both Test wins during England's tour of Argentina in June, but was not included in Stuart Lancaster's Elite squad last month.
"The root of it is playing for Sale and that's where I'll get my rewards from,"
"If that goes well, there's the autumn internationals and the Six Nations."
Thomas, who was involved in England's 2013 Six Nations squad but had to wait until the summer for his international debut, continued: "The goals I set for the Argentina tour were winning two caps, so it was mission accomplished.
"There are aspects of my game that I need to work on and I'll try to make an impact at another time.
"I'm back in the Saxons squad now so it's up to me to push at the start of the year and try to get a spot in another squad."
Thomas impressed during a miserable 2012-13 season for Sale, during which the Sharks had three directors of rugby and only guaranteed survival in the closing weeks of the campaign.
As well as Thomas, the performances of fellow 21-year-olds Tommy Taylor and Ross Harrison were rare highlights, and the young trio of front-rowers are likely to be involved in Sale's opening league fixture of the season against Gloucester at Kingsholm on Saturday.
Thomas added: "It's credit to the management trusting in those guys. Sometimes you have no option with a few injuries and I imagine that's how all three of us have got our shots over the years.
"Last year when we were having a tough time, those guys really stood out and there's definitely more to come from them this year."
Sale Sharks first home game is on Friday 13th September 2013 when we entertain Newcastle Falcons. Season Tickets are still available for the new season and can be booked by phoning 08444-994-994. You can also email email@example.com and we will call you back. Want to view the available seats at the stadium? Email firstname.lastname@example.org and we will arrange a convenient time for you to visit the stadium and we will show you the best available seats. You can also book match tickets for any games running up to Christmas by calling 08444-994-994.