Nice
To get started, here's some tips:
1. All crafting (minus some basic things like torches) is done at various types of crafting furniture.
2. The first one, is the Workbench. To make it you just need some wood. You can make simple wooden furniture and equipment with it. You'll need this to build your first basic house to survive the night when monsters start appearing.
To craft, just press ESC to open the menu, and you'll see all your crafting options at the bottom left. It will only show things you can make right now with the stuff in your inventory. You need to stand nearby a crafting place to make its respective items. You can place your workbench by clicking it in your inventory (or hotbar) to select it and then clicking in an area near you where you want to put it.
3. A 'house' is what the game considers an area where you can live in. All livable spaces needs to have walls, a roof, a floor, a door, and I _think_ at least 2 pieces of furniture (a chair and table will do). NPCs will come to live in these over time, most will sell new items to you. You also can only place 'beds' in 'houses'. Beds can be clicked to set it as your save point.
4. To make walls for the background, you need to craft XXX Wall from your blocks at the workbench. You can make walls from most materials, at the start you should go with wood walls because trees are easy to farm (and dirt doesn't count as proper house material I think). But you can also use stone, metals, etc if you have it.
5. The pickaxe mines blocks, the axe chops down trees, and the hammer removes background items, like the Wood Wall background, but can also modify the shape of normal blocks (you can create slopes this way).
6. The better your pickaxe, the faster you'll mine.