Calling All Victorianists!

I need a recommendation for a good biography of Queen Victoria, for a story featuring Vicky from her girlhood through her wedding.  I'm reading what of her journals I can find on-line, but they all seem to start with her accession to the throne, and I know she kept a diary before that.  I'll need a touch of politics, too, since this puppy will be needing a plot.  There are SO MANY biographies out there, and I just don't have the time to go vetting them.  I'm particularly intrested in her education, her day-to-day life:  Scenes in the life of a Young Heiress to a Throne.

Yes, I have seen Young Victoria.  Yes, I think it's wonderful.  It helps a lot.  I just need more data.