1. Tournaments are slowwwwwwww. Especially if you play alone very much.
2. You'll probably play worse than you usually play. Maybe not. But be prepared to be a couple strokes off.
3. Don't go for the shot that you sometimes can execute. Go for the shot that you can almost always execute. Unless you're playing Advanced in your first tournament for some reason, pars will serve you well. They won't win it for you, but not many people win their first tournament. Bogeys and double bogeys will kill you.
2. You'll probably play worse than you usually play. Maybe not. But be prepared to be a couple strokes off.
3. Don't go for the shot that you sometimes can execute. Go for the shot that you can almost always execute. Unless you're playing Advanced in your first tournament for some reason, pars will serve you well. They won't win it for you, but not many people win their first tournament. Bogeys and double bogeys will kill you.