You need to come at least once a week for writing/coaching in order to complete. Speech is primarily on Thursdays, but you can come on Wednesdays as well (during debate)
Plan to come to speech more closer to competitions (see "Competition Calendar" under "More" for information about competitions)
See the "Events at a Glance" tab for overviews of each speech event
See the subsections of the "Events at a Glance" tab for more resources for each speech event.