Guernsey FC manager Tony Vance says his side must build upon their 4-3 win at Whitstable Town.
The Green Lions led twice, but trailed 3-2 in the final 25 minutes before Tom Strawbridge and Mark McGrath scored to give them a second win in 11 games.
"To come away from home and win like that is really pleasing," Vance told BBC Radio Guernsey.
"The problem we've got is stringing more than one result and one performance together."
|10 points from a possible 36: Guernsey FC's poor league form|
|Saturday, 27 Sept: Beat Horsham 4-2 (a)|
|Saturday, 4 Oct: Lost to Burgess Hill Town 2-0 (h)|
|Saturday, 11 Oct: Lost to Hastings United 4-1 (a)|
|Tuesday, 21 Oct: Lost to Tooting and Mitcham United 5-2 (a)|
|Saturday, 8 Nov: Lost to Herne Bay 4-3 (h)|
|Tuesday, 18 Nov: Lost to Merstham 8-0 (a)|
|Saturday, 22 Nov: Beat Chipstead 3-2 (h)|
|Tuesday, 25 Nov: Lost to Hythe Town 6-0 (a)|
|Saturday, 29 Nov: Lost to Whyteleafe 1-0 (a)|
|Tuesday, 2 Dec: Drew 1-1 with Carshalton Athletic (a)|
|Saturday, 6 Dec: Lost 3-0 to Walton Casuals (h)|
|Saturday, 13 Dec: Beat Whitstable Town 4-3 (a)|
The victory lifts Guernsey up to 17th place in the Isthmian League Division One South, six points above the relegation zone.
Dominic Heaume and Jacques Isabelle had given Guernsey a 2-1 lead in the first half, before they conceded twice.
Their eventual victory came at a price as Isabelle was stretchered off with a puncture wound to his foot and Jason Winch was sent off for a second booking deep into second-half stoppage time.
"There was tremendous character, tremendous fight, and no-one can deny that we deserved the three points just for that alone," Vance added.
"To have the squad that we had here and to get three points away from home in difficult circumstances is outstanding and credit to them.
"Recently, because of our situation, the team has been picking itself rather than me picking the team. I said to the lads today that they had a great chance to go and deserve that shirt and I think they all did."
Guernsey travel to Worthing, who have scored 12 goals in their last three games, on Wednesday night, but Vance says it is unlikely that he will be able to name the same side.
"We'll probably have a completely different group unfortunately," he said.
"I'd like to be able to name that team again, but whether we will, I don't know."