First of all, let’s talk about the properties of the words used in the name: Chen Siying-Fire, Metal and Wood
The three words conflict with each other in a mess! Fire overcomes metal, and metal overcomes wood. Unlucky.
Look at the eight characters again:
The eight characters are: Renchen Jiyou Renchen Jiyou
The eight characters avoid gold and water. Use gods as wood, fire, and earth.
It is appropriate to choose a name with the characters of wood, fire and earth attributes as auspicious.
Chen belongs to fire, and is originally a god. The second character of his name cannot be gold. Gold is originally a taboo god, and it consumes fire, which is unlucky.
It is recommended to change the name!