The Owls go into the final stretch of the season in the play-off places.
Carlos Carvalhal's men are currently sixth in the table with just eight games to go. And the young goalkeeper has claimed that there is enough momentum in the squad to get them across the line.
"Morale is high in the camp and everyone believes with eight games to go that we can do it," he told the Star.
"We are confident we can finish in the top six. It is in our hands. If we keep winning, we will stay sixth or possibly higher. We are not waiting on other teams to slip up which is a nice position to be in.
"You would rather it be in your hands than not at this stage of the season. It is down to us."
While the chasing pack consisting of Cardiff City, Ipswich Town and Birmingham City had previously been right on the Owls' tails, ready to pounce if Wednesday dropped any points, the club's last two results before the international break helped them create some daylight that could be crucial in the run-in.
The Bluebirds are currently the closest of the trio of sides but are three points back, while Gary Rowett's men can move to within the same margin if they win their game in hand.
But with Wednesday securing back-to-back 3-0 wins before the break, their goal difference is also now considerably better than any other of their rivals from below, meaning that - at this stage of the season - they arguably have virtually another point's advantage over the three sides.