There's currently no way to reset your character.
Also the Sancturn just works as a HUB of sorts, there's no healing or crafting or location saving or anything of the sort there. At most you can change items/tools on hand and select a different destination from the saved locations.
You can craft a crafting table outside if you have the "Basic Crafting Recipes" Skill, but will only be able to place it inside your plotted area, be it by a beacon or campfire.
Campfires will only last for 24 hours and can't be refueled, they protect 2 plots. While beacons need to be fueled (foliage, trunks and timber) and can be plotted from there on different configurations and shapes.