The Cardiff City midfielder, who is on loan at Huish Park until January, has been a regular in the newly-promoted Championship side's team this season.
The 19-year-old told Western Gazette: "I'm really enjoying myself. The boys have been brilliant, hopefully I can kick on, score a few goals and help the team.
"I'm not sure what will happen in January, but I will keep my head down and work hard until then. It will be nice to see what happens in January.
"The fans, I couldn't believe how they got behind the club here. They're brilliant, especially at home and it's been a joy to play in front of them. We have given them some good performances and if we get a couple of good results, they can really help us this season."
Ralls scored his first goal for the club during their 1-1 draw with Sheffield Wednesday last month.