Kendall Jenner thinks Caitlyn Jenner's documentary will ''do so much good''.

The 19-year-old old model is ''excited'' about 'I Am Cait' - which follows her parent, who was previously known as Bruce Jenner, as she settles into her new life as a woman - and believes it will have a positive impact.

She said: ''I think that he can honestly do so much good with everything and I'm excited for it. If he's excited, I'm excited for him.(sic)''

And Kendall credits Caitlyn, along with her mother Kris Jenner, for helping her achieve the success she has today by instilling a sense of maturity in her at a young age.

She told E! News: ''My parents raised me. My dad especially was hard on Kylie and I when we were kids and taught us how to be mature adults at a very young age. And we grew up with sisters who are 16 years older than us, so we grew up with that sense of maturity--but I try and be a kid sometimes too.''

Though her schedule is busier than ever, the 'Keeping Up With the Kardashians' star insists she is happy with things being so hectic.

She said: ''I'm so used to our family with our craziness, we've always been like this so I'm used to it.''

But Kendall is still stunned by how well she is doing in her modelling career.

She admitted: ''I would never have expected it but I'm so glad it's all worked out like this, it's a dream come true.''