How do I season wood on my own?
From my experience with Walnut, etc.

You slab it with the bark on, oversize so there is excess stock to work with when planed to final dimension and stack the flitches with stickers between them to keep them separated. The base they're stacked on needs to be flat, the storage sheltered from rain and extremes of weather.

Paint the end grain to slow down moisture movement in aid of reducing checking and minimizing splitting.

When properly dried out, the flitches get resawn and then sent to the planer for finished dimension or sent to the veneer mill to be sliced down into sheets.

A local business, Wagner Electronics, produces moisture meters that are used to determine when wood is seasoned to the proper moisture content. Slow is good. Note: not an affiliate of any kind with the company, just relating how the professionals determine seasoning speed and finish.

Flitch: a piece of wood that is to be resawn or sliced for veneer.

Sticker: thin pieces of wood used to separate flitches or veneer stacks.