Reading were bottom on Christmas Day but have since gone on a run that has seen them beaten only once in 2013 and last weekend's 2-1 victory at home to Sunderland moved them two points clear of the relegation zone.
"It is nothing about 'told you so'," he said. "You never get carried away and all we can do now is concentrate on our next game and try to do the best we can and get a result."
He went on: "We just try to work to the best of our ability and try to get a result on Saturday - nothing else matters. People will want instant success and every time you're involved in something that is not easy you are going to have peaks and troughs and we have certainly had those in the last three years.
"You just go through those, you always have a choice and you can keep going or give up and we never give up."
Stoke have an envious home record in the league so far this season with Chelsea the only side to pick up a win at the Britannia Stadium.
McDermott is aware of the Potters' home form but will still be looking to travel home on Saturday having picked up yet another positive result.
He said: "They have lost one game in the league this season at the Britannia and every time you go there you know the fans are going to be vocal.
"Tony has been doing this at this level now for a long time and has been very successful, he has been to a cup final and did well in the league and has a decent amount of points again so he knows what he is doing.
"We have got to go there prepared and try and get the right result. We will see what the outcome is at five o'clock, we just want to be ready and make sure we are ready. We will see if we get three points or one point or no points."