absolutely decision is yours.
Well what you wanna do from there? Can't give advice if we don't know what you're aiming..
If you said no money, then back like before, farm and farm, doing minor dung, and collect bones, dont forget to trade into box before event ends.
and the advice for both farming is still same, make a rumir xD its really the easiest class for you to do anything(farm bones/jewel/support).
Maybe other have good advice for you.
about guild, hmm idk about guild.
currently there are no pure farming friendly guild thats really good. Maybe BLACKLAND but that guild is full of germany, and the leader loves to QQ.
E2N + Syndicate is ally, they are on war with Royals + COVENANT.
I am not suggesting you to join them until you ready your PVP char.
Oh those above are the only guild that really consist of multiple players, the other guild you see, big chance is just a one man guild or something like that.
anyway another thing to consider is, create a guild with your alt just to utilize its guild bank(make your one man guild too xD)