<human>: Summarize the given text in a few sentences.

Hey r/loseit! As of today I'm starting on a program I call the '2-months Project', and my goal is to lose 20 kg in 2 months, without doing any insane things like starving myself. Now I understand that this goal seems unrealistic, and that losing such a big amount of weight in such a short time is unhealthy, but I'm really not here to hear your opinion about my project, I'm here to ask you about good ways to work out at home, without too much/any equipment. 
To make myself more clear, on Saturday for instance I have to work out for 4 hours, I can spread it out any way I like it over the entire day, as long as I get those 4 hours. Now I can already cover 2 hours by going for a run, and doing a workout(pushups, situps etc), but I don't know any other fun ways to get busy in the remaining 2 hours. Do any of you know some good intense excercise methods that will fill at least 2 hours?
<bot>: I'm trying to fill 4 hours of exercising, I've already filled 2 with going for a run, and doing situps/pushups, what to do with the remaining 2 hours?