If this is your first time experiencing ESO+ Trial, I suggest first thing you do is collect Sky Shards from all the DLC zones first, complete the open Delves and Public Dungeons, then find notable quests that give very specific Rewards and walk into each town to gain extra vanity pets for just being there! Lastly, this is the best time to farm your butt off gathering mats that would otherwise be a bother to hold onto without the crafting bag like Cooking, Enchanting, and Alchemy mats that take up a lot of space.