They got back into the match and reduced the deficit to 13-11 but had to settle for a losing bonus point.
And Ryan believes confidence could unlock the key for his side. He said: "There's been times this season we've got things right but we're not going to pretend we're brimming full of confidence after five losses.
"We've got to work our way through and work at being more competitive and more resilient week in week out."
Warriors camped inside the Newcastle 22 for the last five minutes of the game as they tried to take advantage of a five-metre scrum.
The scrum was reset three times before Newcastle eventually forced a penalty to secure the wins.
Ryan continued: "We can't buy a win at the moment. In any other scenario, the final scrum was a situation we should have won the game from.
"The Newcastle side is very resilient and they're very clear on their agenda. They deserve credit for sitting that last 20 or 30 minutes out."
The Amlin Challenge Cup returns next week as Warriors travel to France to face Oyonnax.
And Ryan will use the opportunity to give game time to players who haven't been as involved in the first batch of games.
He added: "Oyonnax away isn't the easiest place to go as Toulon, Clermont and everyone else has found so it will be a challenge for us.
"We do have to freshen the group up because we've been using the same 14 or 15 guys every week.
"We don't have a huge amount of choice but we have to find some way. It's a chance for some other players to impress."