I have a form like the following:
class MyForm(Form):
#personal data
firstname = CharField()
lastname = CharField()
#education data
university = Char
Remember also that a Django Form object is just a collection of fields; there is no need for a 1:1 correspondence between HTML form tags and Django Form objects. If the various sections of the form are actually logically separate, you could consider splitting it up into three Forms, which you could then render in your template with any HTML you want between them (but still within a single HTML form tag).
Whether this is a sensible solution depends quite a bit on the design of your app and the view, of course.