Newcastle's win over Southampton last weekend confirmed their place in the Premier League for next season.
Martin Dubravka reflected: "We spoke about winning against Southampton last week.
"Now we are talking about looking forward and looking higher.
"We can only do that if we finish the season like we played in the first half vs Southampton.
"We deserved it against Southampton especially in the first half as we played very well.
"In the second half they changed formation so we had to react as they put us under pressure.
"When we got the third goal it made us calmer.
"It was nervous in the last 30 minutes.
"It was a tough game because we knew Southampton would put more pressure on us.
"They are also in a bad situation.
"They opened the pitch up and we had some work to do and in the second half."
Dubravka put in a polished display against the Saints and made a stunning save to deny Maya Yoshida in the closing stages.
Looking back he said: "It was just a reaction save.
"I am glad that I could save it just so I could help the guys.
"You can see we are a unit and we play as a team.
"We needed the defenders doing well at Leicester and that helped me a lot so I tried to help them against Southampton.
"Ayoze got a hat-trick and he did an amazing job.
"All of the players played well and gave 100%.
"It's great for us."