Collins out-marked and out-muscled potent Premier League striker Christian Benteke and since signing a two-year contract extension last week at the Hammers has played in every game.
The 32-year-old defender admitted it was a relief to sign a new deal with the east Londoners and it was his current blistering form that secured the extension.
Collins said: “I don’t know what it is – I must be getting better with age I guess. It is a great team to be playing in. Sometimes we defend a little bit too much –it is a bit last gasp – but that is how I like to play the game so it is benefitting me.
“The thought of leaving the club again was getting me down. I have got my family here, the kids are in school. I love the club and the fans have always been tremendous to me so to get it sorted when it looked like it might not have happened is amazing. Thanks to the gaffer and the chairman. I am enjoying training under the gaffer, I am still learning from him. It is a great time to be involved.”
The former Cardiff City and Aston Villa player is also keen to continue his showcase his effectiveness to impress Wales boss Chris Coleman ahead of Euro 2016 in the summer.
Collins did his case no harm against Liverpool.
He said: “The Liverpool fitness coach is also the Wales fitness coach. I spoke to him after the game and he just said ‘keep playing well’. It is something I am really looking forward to for the summer. To be part of a team that has qualified for the Euros is massive and hopefully I will keep my form high and have a chance to start for Wales.”