Pochettino believes the club is moving in a new direction which should bring greater success.
"The chairman (Nicola Cortese) has been developing that winning mentality for the last four years so it is just not me," he said.
"We fully believe in how we want to play and victories like this one reinforces that belief even more. What we have to do is learn from these type of games, learn from the experience.
"We have to believe we can do this in very tough stadiums in the rest of the country. We have to keep on developing that winning mentality and that comes from the manager.
"It (victory) won't be worth anything if we get ahead of ourselves."