The 29-year-old moved from Chelsea on a free transfer in the summer but since then he has suffered a red card, a number of injuries which have resulted in a stop-start campaign, where his infrequent appearances have mainly been as a substitute.
The England international played the full 90 minutes in the 1-0 defeat away to Braga in the Europa League last 16 first leg tie on Thursday night.
"I am just going day by day. I am enjoying my football and I love to go into training with a smile on my face.
"I'm trying to get a run in the side and trying to get back to where I need to be.
"If you work hard you get a bit of luck here and there and I am sure my luck is around the corner.
"This is a cracking club and I really think we are going in the right direction with Kenny Dalglish, Steve Clarke (first-team coach who also worked with Cole at Chelsea) and Damien Comolli (the director of football strategy)."