After a 1-1 draw in Dortmund, the forward received plaudits for his mature display, scoring a vital away goal for Liverpool.
"I have learned a lot, I've adapted a lot. I'm still young, only 20 and people sometimes forget that. I'm grateful to be at this big club, where people believe in me and everything is here for me to become a big player, which is my aim. I'm happy that I'm making these steps and hopefully that continues."
The Belgian hitman also spoke of how his performance against Borussia Dortmund in the Europa League on Thursday night has boosted his confidence:
"It was playing a big team and as the striker I had a big responsibility but I felt the support of everybody from the coach to my team-mates and the fans. Everyone tried to help me as much as possible and it showed in my performance. You can feel the support and it gives me a boost. It does make a difference to experience that."
Origi has scored six goals in 28 appearances for his club this term, although the vast majority of those games have been cameo roles from the bench.
With Christian Benteke woefully short of form, and currently injured, Origi has a great opportunity to establish a partnership with Daniel Sturridge and make it very difficult for Jurgen Klopp to leave him out.
Former Reds boss Brendan Rodgers brought Origi to Anfield in July 2014, before loaning him back to his previous club - Lille, so this season has been the youngster's first taste of Premier league football.
Liverpool face Stoke City at Anfield on Sunday, and after his fine displays of late, he will be hoping to notch up another start for the Reds.