The holistic healer, who yesterday became the third woman in a row to be evicted from the compound, argued that viewers are less judgemental of male contestants and only accept girls who are able to "balance" their attitudes.
"Girls can't get away with stuff, every little thing you do as a female is heightened," she told Emma Willis on Big Brother's Bit on the Side. "You can have w**king competitions [in the house] as a man and get away with it.
"As a woman you just have to be assertive, but at the same time be soft and work out the balance. If you're a little bit too strong you'll be booted out, if you're a bit too vulnerable you'll be booted out."
Heaven also identified her outspoken nature as the reason for her eviction, but stated that she felt lucky to have survived beyond the first week.
"Being vocal went against me," she said. "But I was being myself. I wasn't sitting on the fence...I am so lucky that I made it three weeks in, because if Pamela Anderson didn't give me immunity in the first week I would have been [evicted] - 'Get this vegan, cuckoo bitch out'."
Watch the announcement of Heaven Africa's Big Brother eviction below: