How to do an intense home retreat? I am planning to do an intense home retreat, of 2-3 months -- just like a ven. Mahasi Sayadaw retreat: which means 1 hour walking, 1 hour sitting, all day long, short sleep, repeat.

The thing is, to do a long intense retreat in this tradition (ven. Ajhan Tong Sirimangalo technique, to be specific), I think you need a teacher.

Is there a way I can do a retreat alone at home, with some other technique maybe?  

I would like as much advice from as much people here -- in case they know of ways to do a home-alone intense retreat -- without a teacher.
The Buddha, according to tradition, sat under the bodhi tree for 7 days without moving. Source:https://en.wikipedia.org/wiki/Bodhi_Tree.
He had practiced with other teachers before this though.