Advice request for writing Bucky

Hello lovely people!

I'm still relatively new to fandom and to Bucky-love. I am currently planning out a fic that features him front and centre, but keep stumbling into a road block when trying to get Bucky's voice right.

Is anyone of you familiar enough with him to give me some pointers there? Or possibly a road-map to his personal preferences and dislikes I could perhaps build on?

Any advice would be greatly appreciated!!! <3

Cheers, Rnc