And Robertson praised his team-mates and urged them to kick on after the new year to make sure they have something to show for their ‘incredible’ displays.
“At Anfield we’ve been incredible,” he said when asked to reflect on their year by the club’s official website.
“You can throw in the special Champions League nights we’ve had here as well. It has been a special year at Anfield – I’m sure the fans have enjoyed it and so have we.
“But now it’s about taking that form into 2019 because nothing has been achieved this year.
Andrew Robertson wants to help Liverpool secure a trophy in 2019 (Image: GETTY)
“We came close of course in May and we have started well this season but we need to go into 2019 and hopefully that calendar year can bring a trophy.”
Liverpool’s win against Arsenal was their ninth successive victory in the Premier League.
They went behind in a league game for the first time in a year but Roberto Firmino's 90-second double put Jurgen Klopp’s side back in control.
Sadio Mane and Mohamed Salah were also on target before Firmino completed his hat-trick to seal the rout.
Roberto Firmino scored a hat-trick in the 5-1 victory over Arsenal (Image: GETTY)
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Mohamed Salah was also on target for Liverpool (Image: GETTY)
“The response was brilliant and we stayed in control,” Robertson added.
“We didn’t panic and we kept on playing our football, kept the ball down, and that’s how the first goal came about.
“Fair play to us for getting back into the game and then obviously the fans get right behind you. To be 4-1 up at half-time was incredible.
“But we knew how hard the second half was going to be because sometimes the easiest thing is to sit back and we knew how good Arsenalwere.
“It was important in the first five or 10 minutes we really kicked on; we had a few chances and then to score the fifth made it a really nice afternoon.”