The right-back failed to leave up to expectations after joining the Buccaneers on a long-term deal from Lamontville Golden Arrows prior to the 2016/17 campaign.
Sikhakhane, who made 14 appearances in all competitions for Bucs, has since been shipped out to Usuthu on a season-long loan deal.
"I was not happy with my first season at Pirates because we achieved nothing. I am positive that I will be a better player when I go back there [next season]," Sikhakhane told The Sowetan.
"I love the club and they will always be in my heart. Playing for Pirates was a dream come true because when I was young I wished for that opportunity," he said.
Sikhakhane, 24, revealed what he aims to achieve with AmaZulu and also discussed facing his former side, Arrows, in the KwaZulu-Natal Derby.
"I am excited to be back in KZN. I am sure it will show in my game that I am home now. As far as I am eager to help my new club," Sikhakhane continued.
"I have nothing to prove to Pirates because they have contributed positively in my life. I am thankful to them," he added.
"I am not involved in the rivalry. I just accepted this opportunity because I want to play football," he stressed.
"I cannot say if I would have preferred Arrows or not, but I am happy that I will be playing again. I want to help AmaZulu finish inside the top eight,'' Sikhakhane concluded.