using one sheet or multiple sheets


I am brand new to Smartsheet and want to know how I determine whether or not I put multiple topics on one sheet or on separate sheets.  I am working with budget-related topics.  For example, I don't know if it makes sense to create one sheet with all phases of budgeting  (quarterly forecasting, budget development, budget approval) or to put them on separate sheets.  What factors determine this?  Are there tutorials or other resource materials folks can recommend?

Thanks so much for your help!