I had 5 chest x rays from the age of 18 til now that i am 23,am i in risk for leukemia or other form of cancer, from the radiation in the future?

This is a: very small amount of radiation - this should not pose any significant risk to your health.

We all are: A person with 5 chest x-rays is at the same risk as the person with 4 chest x-rays, or 3, or 2, or 1, or none. A few chest x-rays makes no difference in the grand scheme of life on Earth, where we are exposed to natural radiation every day.

No: The amount of radiation that you get from a few chest x-rays is trivial. It's less than a twelfth of what you get just from the radon produced by radioactive elements in the earth during the course of a year. There are junk-science papers that use recall bias ("Yes! I remember! I had a LOT of chest x-rays!") to "prove" a link to cancer; the best work shows no detectable increase in risk.