The South Korean scored both goals in United’s 2-1 win over Wolves on Saturday.
“Next week we have two very important games and we needed to stay in the winning mood,” Park told MUTV.
“We’ve done that and now we have to prepare well for the game against Manchester City.”
“I’m very happy,” added Park on the Wolves game. “We’ve got another three points and I’ve scored the winning goal in the last minute. I’m very happy with that.
“You can’t compare this feeling to anything else, the feeling of scoring the winning goal in the last minute with the crowd all jumping up and shouting.
“It’s an unbelievable experience, I really enjoyed that. We kept trying to score and in the end we did it.”