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Buy this books: https://www.amazon.com/Philokalia-Bishop-Diokleia-Kallistos-ebook/dp/B01D587BS2/ref=sr_1_2?ie=UTF8&qid=1540579784&sr=8-2&keywords=philokalia
They give you sufficent instructions and guidance for start. Study diligently Philokalia and other Eastern Orthodox spiritual texts. And one last advice: convert for catholicism or orthodoxy, without sacraments you won't endure on path of Jesus Prayer.