Speaking ahead of their first match on Saturday against the yet to be determined Group A winners, Madisha said the loss of his sister during the season was unbearable.
On the other hand, the 23-year-old defender will hope to play a crucial role for the hosts as the tournament is played in his province of Limpopo.
Despite his struggles, the Zebediela-born player became a league champion for the first time as Sundowns secured their record eighth title.
The former U23 national team skipper reckons playing in the Cosafa Cup will help him bounce back.
"In my career, some of the moments where I was playing my best football were with the junior national teams. So, playing at the international level again will be good for me," Madisha said to the Sowetan.
"At club level I know it was not my best season but as you know, we had a death in the family and it was not easy, but at least we won the league title and I will come back better and stronger next season," he continued.
"The tournament will be playing not far from home. So, that will be a plus for me," he said.
"I will be playing in front of my home fans where I will be free and confident to express myself. Any opportunity to represent the national team is a chance to learn and grow," he concluded.
Bafana will wait to see the winner of the group which consists of Seychelles, Comoros, Madagascar and Mozambique.
Meanwhile, Madisha could partner the likes of Kaizer Chiefs’ Siyabonga Ngezana, Maritzburg United’s Siyanda Xulu, Taariq Fielies of Cape Town City as well as Innocent Maela of Orlando Pirates in defencefor Bafana.
Stuart Baxter’s men have won the tournament four times and will want to dethrone champions Zimbabwe to lift their fifth crown.