Why does my code not loop?

Using Arduino Programming Questions
1

This is my very first time coding with an arduino, I just want a LED to blink, I've done the wiring correctly.
Here's the code:

void setup() {
// put your setup code here, to run once:
pinMode(13, OUTPUT);
}

void loop() {
// put your main code here, to run repeatedly:
{
pinMode(13, HIGH);
delay(1500);
pinMode(13, LOW);
delay(1500);
}}

Problem is that it only blinks when I reset it and it doesn't turn on/off for 1.5 seconds, it blinks 3 times quickly, The same as the orange little LED on the arduino.
I've tried changing 'pinMode(13, OUTPUT);' to 'pinMode(13, INPUT);' too,
same thing.
What can I do to fix this?

2

What Arduino board?

Read the forum guidelines. Post code in code tags.
Use the IDE autoformat tool (ctrl-t or Tools, Auto format) before posting code in code tags.

Here is your code formatted and posted in code tags.

void setup()
{
   // put your setup code here, to run once:
   pinMode(13, OUTPUT);
}

void loop()
{
   // put your main code here, to run repeatedly:
   pinMode(13, HIGH);
   delay(1500);
   pinMode(13, LOW);
   delay(1500);
}

Extra curly brackets removed.

pinMode() is an initialization, for changing an output use digitalWrite()

Edit: I don't believe that I missed that.

3

pinMode() is an initialization, for changing an output use digitalWrite()

4

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