[Returning player]

https://vulkk.com/tag/swtor-6-0-class-guides/ the best place to optimize ur builds

[Gearing?]

this should help https://vulkk.com/2019/12/05/swtor-6-0-darkness-assassin-tank-pve-guide-by-ahz/

[Starter Planets during install?]

Ah, I see. Honestly I heard nothing but negative things about the BitRaider installer, so I'm not totally surprised to hear that it's been pulled out. Thank you for your reply!

you can reinstall the steam version of the game, so you never have to worry about bitraider again.