I’m stuck on Kashyyyk

Sure, addressing what's been brought up:

1- All the doors are blocked, many say I need a scomp link

You can pick the scomp link up on your first pass through Zeffo, once you have the force push ability you can break into the giant zeffo statue and there is a workbench just as you go inside that will give BD-1 his scomp link back. None of those doors are particularly necessary, the scomp links only open chests, and locked closets with chests in them. They will not help you complete the mission, so this isn't essental! Skip the scomp link if you don't have it. You only need BD-1's overcharge which you have to get in order to get to the refinery in the first place.

2- Can't reach the vine to swing across the trench. No worries, you will NEVER HAVE TO. The way back is via Tram car from the roof of the refinery, once you have liberated both detention cells and destroyed the AT-ST at the end. You overcharge the tram car to activate it and then you can use it to go straight back to the landing pad.

3- Map pictures showing all doors blocked by scomp links - those aren't scomp links! They are tram cars/elevators/doors that are deactivated, and you reactivate them using BD-1's overcharge. You have to free the wookies to open them. You cannot complete this until you free the wookies. So FREE THE ****** WOOKIES.

4 - Just free the wookies.