One docking option is to motor all the way to your final docking location and then attach the dock lines. If you use this method there should be only minor adjustments of the boat location by hand. Another docking method is to get one corner of the boat near the dock, then attach one line in the correct orientation so you can use the motor to rotate the boat the rest of the way into position using the line as a pivot point. You should practice both methods. Try to plan which method you want to use before you approach the dock. However, be ready to change your plan at any point depending on how it works out, and the skill level of the line handlers. Try to stay calm. Yelling at people doesn't help anything. If you miss your first approach, just calmly go around and try again. There's no shame in doing that.

Also, many people don't know how to properly tie up a boat after docking. You can learn this from a book. Read about what bow, stern, and spring lines do and how to set them up properly. One of the most common mistakes is to setup lines too short, especially spring lines.