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When you start a new game of Clash of Clans, you start with a Town Hall, Gold Mine, Army Camp, and Builder's Hut.  The game has a tutorial that teaches you the basics of how to build your base, attack other bases, train troops and get new resources.  Read the on-screen instructions and tap the icons that have an arrow pointing to them to complete the tutorial.  When you are finished with the tutorial, you will have new cannon, elixir collector, elixir storage, builder's hut, and barracks with trained troops. Try to keep your town hall in the center of your town to keep it more secure. The Shop is the icon with gold and a hammer in the lower-right corner.  This is where you purchase new buildings for your town.  Some items can be purchased with gold or elixir, while others require gems to purchase.  Some require experience or a leveled up town hall to purchase. Use the following steps to navigate the shop:   Buildings and Traps:  This section is under the tab that has an icon that resembles a saw and hammer.  This is where you will purchase most of your items from.  Tap the Army tab to purchase offensive buildings, such as Barracks, and Army camps.  The Resources tab is where you purchase resource-specific buildings, such as Gold Mines, and Elixir collectors.  The Defenses tab is where you purchase defensive buildings, such as walls, cannons, and archer towers.  The Traps tab is where you purchase traps you can put in your town.  Decorations:  The Decorations tab has an icon that resembles a sword in a stone.  This is where you can purchase decorative buildings for your town.  This includes statues, torches, and flags.  Treasures:  This is the tab that has an icon that resembles an elixir bulb, gem, and stack of gold.  This is where you can purchase gems using real money.  You can then use the gems your purchase to buy more gold or elixir.  Shield:  This is the tab that has an icon that resembles a shield with arrows sticking out of it.  This is where you can buy shields to protect your town for a certain amount of time.  League shop:  This has a tab with a league metal on it.  You can earn league medals by competing in Clan War Leagues.  You can use the league medals you earn to purchase items in the League Shop. Since you have limited resources at first, place the walls around the most important buildings only, such as the town hall, gold storage(s) and elixir storage(s). Place the builder's huts and army buildings outside the perimeter of the wall.  To purchase items from the shop, open the shop and then tap the item you want to purchase.  Tap where you want to place it on the map. To move buildings and items on your map, tap the object you want to move.  Then tap and drag it to a new location. Do not waste them, especially your gems as they come in short supply.  Use your gems to build builder's huts. It is tempting to use them all right away, but you will need your gems later. The most efficient way to spend gems is to invest in a builder's huts.  This enables you to upgrade multiple towers and other defenses at once. In the tutorial, you are given 5 wizards to destroy the base. Only two wizards are needed to defeat the 1st goblin base. So if you only use two, you will have the other 3 in your army camp already. This will let you have wizards at Town Hall 1, which you usually don't unlock until later in the game. Don't spend purchase extra gold or elixir storage at first.  You don't need them. You can buy more gems with real money in the shop. Gems can be used to purchase bonus items, or more gold and elixir. There are other ways of getting gems than spending money. So if you don't want to spend your money, not to worry. You can get gems when you remove trees and obstacles from the area around your base.
Complete the tutorial. Open the Shop. Purchase walls for defense. Spend your gold, elixir, and gems wisely. Decide if you want to use real money to get ahead in the game.