Is that right time for a journey of my life?

Tibet is really a mysterious territory. I have also been dreaming of visiting there for a long time. September is one of the best times to set out the hike. Try new stuff is also recommended by the prediction. You can do it!
But due to the high altitude, the trip should be very challenging. You may start exercising right now to get a stronger body for it. Hope you enjoy your time there!