Here I am going to discuss two methods. Skate ready to be thrown out in a semi-circle Blocker arm in tight so no hole same for reversed direction Screened shots are extremely common. Even the best defense will screen the goalie several times during a game. But, never the less, it still happens. If there is a man parked on the corner of the net, you should play back for the possible tip-in.
Deflections are a part of hockey.
There is no way a goalie can expect that the puck will travel from the stick to them without touching anything. Breakaways are bound to happen. The defense can't be perfect all of the time. Goalies have to understand that they will get beat. You shouldn't get frustrated, you have to keep working and sticking to the basics.