The Reds have already lost their Premier League title, with Manchester City closing in on the trophy, and Jurgen Klopp’s side sit sixth in the standings – four points off the top four with five games remaining.
Liverpool twice slipped up last week, drawing 1-1 against Leeds and Newcastle after conceding a late goal in each game. Diego Llorente scored Leeds’ 87th-minute equaliser at Elland Road on Monday, with Joe Willock ensuring the points were shared at Anfield on Saturday with his goal in the 95th minute.
“It pretty much sums up our season,” Robertson told reporters. “We don’t learn our lessons.
“We keep on doing the same thing, making the same mistakes.
“Newcastle deserved their goal, the two of them – I think that rule is ridiculous,” the Scotland left-back added, referencing a Callum Wilson finish disallowed for an accidental handball.
“We could be sitting here with a defeat, which is baffling with the amount of chances we had, the first half and even second half and the control,” Robertson continued.
“What we were based on was that we were so good at seeing out results and we can’t do that just now. It’s as simple as that.
“Teams always have a chance against us, they always build in confidence the last 10 minutes and believe they can get something. That’s not like us.
“We can’t keep on coming out and speaking a good game, we’re not doing it on the pitch and games are running out.”
Liverpool next host second-placed Man United in the Premier League on Sunday, with a win against their rivals important if they are to keep alive their hopes of playing in next season’s Champions League.
“This club is a Champions League team,” Robertson said.
“We got to the quarters-finals this year – and we are still disappointed with that [defeat by Real Madrid] – and two finals in the space of four years and won the Premier League comfortably last year, so to not have Champions League football next year would deflate the whole club, of course it would.
“This club is based on fighting to the end and that’s what we need to do.
“Even if we win the next five games it might still not be enough, but we need to put that pressure on the teams.
“There have just been too many games this season where we’ve dropped too many points. Against the bottom six, if you’ve only picked five points up at home then unfortunately you are going to fall short of your target.”