Martina graduated from the Bow Street Academy of Screen Acting in Dublin in 2018 with a degree in film acting under Gerry Grennell, who has been an acting coach for a number of well-known film actors, including Natalie Portman, Heath Ledger and Johnny Depp. She has acted in several feature films, series and theater in Ireland and England. Martina speaks several languages, accents in English and has a certificate in unarmed stunt work. Martina won the Best Actress in a Leading Role Award at the Toronto Film Festival in 2020.