Give me some tips on how to train for a marathon.
- Come up with a training plan
 - Plan for 3-5 months of training
 - Increase your daily mileage gradually
 - Increase your weekly mileage gradually
 - Have a mix of speedwork and endurance work
 - Include sessions to build strength
 - Stretch before and after your runs
 - Include rest days for recovery
 - Pay attention to nutrition and hydration
 - Pay attention to hydration
 - Taper 2 weeks before the marathon
 - Go for it, good luck on race day!