Guilds need more explanation

Starter Guilds are "off" they dont seem to be working as intended for many new players. I would suggest leaving them sooner rather than later to find a "real guild". They will be able to explain alot of these questions but I will also try to do my best here.

Guild Tokens are earned by doing guild activities. Check the guild tab under quests to see what the current one and the next one are. There are 7 and they repeat each week, Cantina energy, Hardnodes, Any energy, Challenges, PvP battles, LS and DS energy.

The above is seperate from the daily 600, which is used to earn raid tickets.

as for the raids, that is more on you than them. You can ask around the forum and if you were in a more active guild you could theorycraft that together. They will not provide this for you, they want you to dig in.

yes complete the raid and get rewards, the rewards are based on the damage you deal. there is nothing to be gained by dealing a finishing blow.

Hope this helps.