The striker struck in United's 2-0 win against Sunderland.
Speaking to MUTV after the game, Sesko said: “It feels amazing. It feels even better because I’ve helped the team to come to the end and to win the game.
“In the end, it’s important to win the game, trying to help the team as much as possible.
“The goal, the atmosphere afterwards was unbelievable. It’s something that I’ve been dreaming about, jumping high at the stadium like that, and yeah - (my) dreams came true.”
The Slovenia international also said: “In the end, this is my job; trying to score as many goals as possible, trying to win the games, trying to help the team in every single situation, and hopefully (there are) more moments like this (to come).”
“No, no yet,” he continued, when asked if we are starting to see the best of him. “There is loads (still) to come, definitely.
“I’m still getting used to it more and more, to read the players, to connect with them even more. I believe I can be even better and I will try to show it.”
Bundesliga v Premier League
Asked about adjusting from his time at RB Leipzig, Sesko also said: “I think it’s way quicker, you have less time in general, I think this is one of the biggest changes I would say, and obviously also the physicality, everyone is really physical and athletic.
“I am getting used to it and I will come to the level of this soon.
“To play for a club like this or even train every single day, it’s an obvious pleasure. I’m looking forward to be back (after the international break).”