Alan Archibald's side have lost just two of their last 10 Premiership fixtures and face Inverness Caley this afternoon aiming to put more distance between themselves and 11th-placed St Mirren in the standings.
Wins over Aberdeen and Hibernian at home and a battling point against relegation rivals Ross County mean it has been a decent few weeks for the Jags.
And defender O'Donnell is determined to keep their good form ticking over for as long as possible as the battle to beat the top-flight drop intensifies.
He said: "We have taken seven points from the last three games, and that is not a bad return from a team that is near the bottom.
"We have more than deserved those sorts of runs through the season, but we have been unfortunate and not managed to get them.
"I am glad it has come at an important time of the season and hopefully it can continue. I have not looked at the table. I have just looked at it game-by-game and tried to get a win.
"If we go up there [today] and get the three points it would be a great help. Ten points from four games, you would certainly take that at any stage, none more so than at the end of the season when there is a bit more pressure on you before the split.
"Hopefully we can go up there and get the three points and move on."
While Thistle have enjoyed a productive recent spell, things have gone from bad to worse for their Highland rivals as John Hughes' side have struggled.
A Scottish Cup exit at the hands of Dundee United was followed by a League Cup final loss to Aberdeen and Premiership defeat to Motherwell this week.
Hughes has yet to taste victory in the Highlands and O'Donnell hopes Thistle can add to Caley's woes today.
He said: "Hopefully they are a bit tired and we can capitalise on that. They are all fit boys but after extra-time last Sunday and then a tough game on Wednesday night, hopefully we can capitalise on it and get the three points.
"I hadn't realised they hadn't won at home under John Hughes. Sometimes these things happen. We didn't get a home win for 10 months.
"It is often harder to play in front of your own crowd, there is a lot more pressure on you to go and play whereas the other team can come and have a go and try and get something.
"I wouldn't look too much into that. They are a good side and they have been unfortunate this week so hopefully we can add to that."
Archibald's side make the trip up the A9 aiming to continue their unbeaten run in the Highlands this season. Kris Doolan bagged a double in the 2-1 win in October and O'Donnell is eyeing a repeat result this afternoon.
He said: "I have only been there once. It is open and you don't usually get the best weather but it is a nice wee stadium.
"We won by the odd goal the last time we were there and it was probably one of the best battling performances we have had.
"We didn't play our silky soccer, but we managed to get the win and I would more than take that again this time."