do you cut back Orchids?

[Sebastian]

Hi everyone my Orchids have had there time of blooming now old leaves falling , nothing is wrong with them and do I cut back the stems a bit , because as the Blooms fall off the stem becomes a bit woody looking , now I dont know what to do at this point but to feed and water , how do I know if I need to repot , this is my first growing season and this is the first time Im going through this and looks like its going into bear trees time thanks sebastian