The 40-year-old designer insists that one should never lose hope in time of crisis, reported Daily Mirror.
"I think everybody has crazy moments of self-doubt and an element of that is probably quite important. But you should definitely not waste too much time being negative in any way," Victoria said.
"It's about positive thinking, positive energy, and fighting if you need to fight," she added.
The mother of four, who opted for a low key celebration to mark her 40th birthday last week, said she always dreamt of becoming a designer, but insists she did not do it to "prove anything to anybody".