In 2003, the CIA declassified a report from 1983 detailing the "Gateway Experience," a training system developed by the Monroe Institute. The document, authored by U.S. Army Lieutenant Colonel Wayne M. McDonnell, describes a process for transcending the physical limits of space and time through altered states of consciousness. Do your research.
Put yourself through hell and you will come out better for it. Abandon what does not make you better, leave behind what burdens you. Make way for your true path.