Lady Kitty Spencer pictured in Sydney last year. Picture: Christian Gilles

Lady Kitty Spencer, the eldest child of Diana’s brother, Charles Spencer, volunteers as an ambassador at London-based homeless charity Centrepoint.

Speaking to The Times, Spencer said she has struggled to find a purpose in life and could probably live off of the money she makes from her Instagram posts, not to mention a hefty inheritance.

“The young people that have come out of Centrepoint are so focused on one thing,” Spencer said.

“So for that I envy them. I do battle with what it is that I really want to set my mind to.”

Spencer, the cousin of Prince William and Prince Harry, grew up mainly in South Africa with her model mum, Victoria Lockwood.

Prince Charles and princess Diana on their honeymoon at Balmoral in 1981. Picture: Darryn Lyons archivesSource:Supplied

She is reportedly in a relationship with Italian real estate mogul Niccolo Barattieri di San Pietro, who is 20 years her senior and a divorced father of three children.

Spencer’s elder brother Louis is in line to inherit the family’s famous Althorp estate, where Diana is buried.

Lady Kitty Spencer ... clearly not homeless. Picture: InstagramSource:Instagram

Spencer, who studied politics and psychology at university, said she is “putting a lot of pressure on myself to figure out what exactly to do next.”

“I don’t want to look back and see where I could have done more for people.

“I could be what my Instagram says and nothing more.”

Lady Kitty Spencer’s father Charles Spencer and her cousin Prince William at Princess Diana’s funeral in 1997. Picture: SuppliedSource:News Corp Australia