"It was a bit hard for me at the beginning but I am feeling better now".
"It was a bit frustrating but we now have eight games left and we have to make sure we win majority".
Mkhitaryan, who only joined the club in January, has hit a good patch of form with his goal on Saturday following a strike in the 2-0 away win against AC Milan in the Europa League.
"I'm feeling really better; in January I didn't play a lot so it was hard when I came here, but I'm feeling better and I try to do my best of course for the team and for the club", Aubameyang told BBC Africa Sport.
Aubameyang has played for Borussia Dortmund in the Champions League this season and though that does not make him ineligible for the Europa League, the fact that the German side have dropped into the competition does.
"I leave that judgement to you, I think yes", he said. I don't know how to say it in English but I am disappointed because I can't help my team.
"That's life. I have to deal with it".
"You need to work a lot to try and beat this kind of team", the midfielder told Watford's official website.
"When you have a run of negative results and it carried on from the Ostersund game at home and in the league".
But the day belonged to the 35-year-old this time around when Watford visited Emirates Stadium, as he saved a penalty from Troy Deeney - who has previously been open in his criticism of the Gunners - and ultimately secured a shutout in Arsenal's 3-0 victory. "We feel the confidence is back".