Paul di Resta believes that if he is given the chance to race for Williams next season, he will prove that he has learned from his past mistakes.
The Scot is one of several drivers chasing a 2018 Williams race-seat.
However given that the team needs to run someone older than 25 in light of their Martini sponsorship, it is F1's older drivers who are in the running; Felipe Massa, Robert Kubica and di Resta.
And with the latter already a Williams test driver, di Resta is hoping that he has shown Williams that he can do the job especially after filling in for Massa in Hungary this year.
"They know me well enough now. I've been here over a year and a half," di Resta told Autosport.
"I've very actively tried to get as involved as I can here, as I will continue to do.
"As time goes on I've made it very clear what a dream it would be to get in the car.
"I'm racing DTM alongside what I'm doing, but being here and under people's faces is obviously the biggest thing.
"I've learned from my mistakes in the past, and I can try and put it to rights.
"It's a bit of a waiting game. I'm actively trying to do as much as I can to try and put myself in contention for it, because it is there, and it's an important time for the team as well.
"It would be wrong to say I lost my appetite for it. The longer [not racing in F1] went on, the more difficult it was becoming.
"It proved to myself that I can certainly still do the job, although you always believed it.
"And maybe it showed the outside world a bit more that given the opportunity again, that was only a sniff of what you can do, given a proper chance."