I HAVE THE NEW MACBOOK AIR 13 AND I WOULD LIKE TO UPGRADE MY MEMORY FROM 8 GB AND UPGRADE PROCESSOR ALSO, THE FLASH STORGE 251 GB TO 1 OR 2 TB IF ITIS POSSIBLE

Everything is Soldered to the Logic-Board and can not be upgraded. At the Time of Purchase is the only way to alter the configuration. A learned @woodmeister50 mentions, one can sell the exiting machine and buy the new one with the specifications desired.

The only way to do that is to trade it in and buy a new one.

There are ZERO upgradable components in the new MacBook Air

as they are build to order.