Hello aspirant,

You cannot become a financial manager after 10th.  Of course there is course such as diploma in financial management. Duration of the course is of one year. Candidates who want to pursue this course must have completed 10th and 12th from a valid recognized board with a minimum aggregate of 55% or more. So if you want to be a financial manager, then complete your 12th and go for the course.

Hope, this information helps you.