Marten de Roon says he was frustrated not have rescued a point for Boro against Tottenham at the weekend but insists the club and fans must move on together in the remaining games.
The midfielder had a half-chance to level the score when he struck a volley wide of the target with moments remaining after being played in by Alvaro Negredo.
"Of course we're frustrated because of the defeat, that's normal," said De Roon. "But when you get a last-minute chance like that you have to hit the target at least.
"I'm frustrated for myself because I could've helped the team and given the team maybe a point.
"The most frustrating thing is that we have no points again and the bottom is closer.
"They're a quality team and have played in the top five for a few years.
"With so much quality and movement from the forwards and midfield you're defending more. I think we defended very well and it's unlucky that they get a penalty.
"They just had a little more quality than us."
Boro were backed in numbers in the away end at White Hart Lane and De Roon believes the fans' support will be crucial to the team's survival bid.
"We lost 1-0 and the crowd still clapped and shouted for us," said the midfielder. "I've said it before but we have to go together.
"We have to stick together as a club and team, that's the only way we can make things possible. I think with a little bit more luck, quality and belief in ourselves.
"We can do it, we have the team that can do it and that should stay in the Premier League. So we have to believe in it and go as a team to the Riverside next Saturday to get a result."