Central defender Wilson spoke out after the National League North side lost 1-0 at Tamworth on Saturday to leave Trinity in the relegation zone.
They went into the midweek match against FC Halifax third-from-bottom, but level on points with Worcester City.
Wilson said: “We need to believe. As a team we need to regroup.
“We can’t dwell on the past. We have got to keep going and we have got to get out of this dogfight.”
Wilson admitted the side looked flat-footed during the defeat a week after impressing in a narrow loss to leaders AFC Fyld.
“We had a good game last week against Fyld, but today we slipped back into bad habits — and those bad habits are not going to get us higher in the league.
“It was difficult in the first half. I think we came out a little bit better in the second, but it was too little too late.
“We don’t seem to be creating many chances, but the one or two we do create we need to be putting away.
“They (Tamworth) did not have too many chances on goal but they had a lot more possession in the final third, did a lot more with the ball in the final third and created chances. And teams that create more chances inevitably win games.
“We need to be putting the ball in the back of the net. I had a chance but took too many touches.”
Wilson said it was time for the side to get back to basics defensively.
“We found it difficult to keep hold of the ball and it kept on coming back at us,” he added.
“As defenders you struggle to get a high line when the ball keeps coming back.
“But we are only losing by the odd goal here and there, so I suppose we are getting more solid at the back.
“We just need to squeeze those lines a little bit better — not just between defence and midfield, but between midfield and attack — get the banks of four in and go back to basics.”
Manager Dave Frecklington added: “We didn’t win enough first headers in the first half and so couldn’t compete for the second balls.”