The striker is one of a number of Jags players out of contract at the end of the campaign and is able to speak with other clubs this month over a possible Bosman move in the summer.
Despite establishing himself as Thistle's first-choice striker last season, the 26-year-old has endured a frustrating few weeks as manager Jackie McNamara has elected to start with a front three of Steven Craig, Chris Erskine and Steven Lawless.
Doolan returned to the starting line-up – and the scoresheet – at the weekend as the Jags slipped to third place in the Irn-Bru First Division with a dramatic 2-2 draw at Livingston.
He said: "It was great to be back and scoring again. It is difficult when you are not in the team, but I have kept my head down and kept working hard and I was confident that when my chance came I could take it.
"You can't think you are an automatic pick, especially when we have such a good team. There is no one position nailed down by anyone in the team.
"Everyone is looking over their shoulder, they know if you don't have a good game then you could be out the team.
"That is right across the pitch and that is what makes a good squad, we have so many players that can come in and do a good job.
"My contract is up in May so we will see what happens. I just need to keep my head down and keep scoring goals.
"I don't even think about moving. All I am interested in just now is playing and getting on the score sheet every week.
"If I can get my name on the scoresheet then great and hopefully if I am doing well then the team will be doing well, too.
"We have a First Division to win and hopefully a Ramsdens Cup as well, so that is all I am thinking about."
Despite Doolan and Craig both finding the net at Almondvale, Thistle were denied a crucial three points in the title race as Marc McNulty snatched a late draw for Livi.
The Jags are now behind Dunfermline and Morton in the standings, but Doolan expects many more twists and turns on the road to championship glory.
He said: "To lose a goal that late on makes it feel like a defeat and not a draw. Hopefully it won't prove costly come the end of the season. You want to look at it positively as it could be a good point for us.
"Yes, we have dropped two points, but it is a hard place to go, and other teams will struggle to win games there.
"It couldn't be any tighter at the top. There have been a lot of twists already and teams are up and down the table every week.
"I think it will be tight right to the end. It doesn't look as if anyone is going to pull away and create a huge gap at the top."