Summarize this article:

Being the goalie is a tough job, stand confidently with your head up and shoulders back. Stay calm at all times and remember it is okay to get hit with the ball, so go for every shot! It’s easy to get discouraged by missing shots, so don't sweat it. Keep in mind how important your job is, and that all you can do is give it your best effort Understand that the goalie position is a very tough position. Accept the fact that you are going to get hit, kicked, and maybe even stepped on, but that it is all part of the game. Mentally preparing for the likelihood of physical injury will help you feel prepared for anything the game might throw at you, so you won't waste time thinking about the possibility of getting hurt and can focus on the game. Do not get scared and stand there waiting for your opponent to make a shot. If possible, attack and take control of the ball, this can help to startle them instead! You can scare the opponent by making your body looking bigger by moving up to the opponent. Or you can make a roar while the opponent is coming at you. The opponent will have a less chance of making a shot. But do not get discourage if you do. You will show your weakness and your lack of confidence will affect your game-play even worse, so keep your mind straight Being the goalie means you have the advantage of using your hands and arms. Don't be afraid to give it your all. Dive, lunge, and jump to block the ball if you have to. If your opponent successfully gets the ball around you, run and slide diagonally toward their right-hand side. If they try to kick it to the right, your feet will block it. If they kick it to the left, stretch your hands out to catch it. Try to keep your legs closer to your opponent than your face to avoid injury. Being fearless doesn't mean you purposefully jeopardize your own safety for the sake of the game. Never try to kick the ball past an approaching opponent, this leaves your goal more vulnerable. Always kick it away from them if possible. Make sure you have a teammate who is able to receive the ball before kicking or throwing it back into play. Penalty shots can be one of the most intimidating aspects of goalkeeping, mastering them will make you less fearful of them. Never wait for the penalty shot on your heels; stay in the middle of the goal on your toes at all times so you can react faster. Remember, the player will have a chance to run up to the ball so there's a good chance the ball is not going to stay on the ground. It’s important to be cautious while your diving. Diving takes time to get used of it but there is no need to fear.  Never land on your knees. Your knees will start to ache and sore and it will affect you during play time When you’re coming down from a dive, roll to your side to break your dive on high dives, and low dives To dive further, lift from your leg your diving off of and launch yourself off of the ground.

Summary:
Have a strong and resilient mindset about your position. Approach opponents aggressively. Use your whole body. Kick the ball away from your opponent. Become a master of penalty shots. Make your diving safer.