The 84-year-old actress, who announced in September she had been diagnosed with non-Hodgkin’s Lymphoma, said: "I’m not losing my hair. I don’t feel nauseous.
"The week when I get the chemo is hard, but then after that, I feel good. I feel very strong."
Fonda, who is now "halfway through" chemotherapy, also said she makes time to workout on her treatment days.
"Even the days that I get chemo, I still do a workout," she told People magazine. "It’s slow and not what it used to be, but still, I’m moving and keeping strong."
The Grace and Frankie star explained the secret to her resilience, explaining: "I’ve lived a good life. I’ve lived a productive and intentional life.
"And dying is part of life. I hope that I can be an example to young people so they won’t be afraid of getting older.
"But you just have to take care of yourself..."
The Hollywood legend will turn 85 next month but had an early celebration of the milestone with a party in Atlanta where she raised over $1 million for the Georgia Campaign for Adolescent Power Potential (GCAPP).
The organisation is a teen pregnancy prevention and adolescent health organisation that she founded in 1995.
A string of high profile guests including film director Tyler Perry and rapper turn actor, Ludacris, attended the celebrations where they enjoyed a performance from soul legend Gladys Knight, and participated in a live auction.
During the sale, 9 to 5 actress Fonda offered a lot where the bidder could join her for drinks at home.
She noted: "And I won’t be on chemo so I will be having a lot of drinks."
The winner will also join her in January at the premiere of her upcoming movie, 80 for Brady.