bˈɔːɹn ɪn kˈɑːszɐlˌɪn, mˈiːlə ɡɹˈuː ˌʌp plˈeɪɪŋ fɔːɹ lˈoʊkəl tˈiːmz ɡwɚdˈɪə kˈɑːszɐlˌɪn ænd bˈæltɪk kˈɑːszɐlˌɪn bᵻfˌoːɹ hiː mˈuːvd tə dʒˈiːdˈænsk æt ðɪ ˈeɪdʒ ʌv sˈɪkstiːn ænd stˈɑːɹɾᵻd tɹˈeɪnɪŋ wɪððə lˈɛkiə dʒˈiːdˈænsk jˈuːθ tˈiːmz.
Born in Koszalin, Mila grew up playing for local teams Gwardia Koszalin and Bałtyk Koszalin before he moved to Gdańsk at the age of 16 and started training with the Lechia Gdańsk youth teams.