need help with custom map (from blender (fbx) object to fivem recourses/add-on)

i need help with custom map creation.
so i madea racetrack in blender, textured, and exported in fbx format but i cant find any info how to convert that 3d job, or what i have to do more to get that custom map in to fiveM.

please someone who knows how to make that stuff give me some instructions.

map pics:


This might help:

You can also use codewalker to convert fbx to ydr, newer version ofc