Please help Simple code for Push to text for OLED i2c

Projects Programming
4

i have a similar problem,

i have a setup with 3 buttons 4 outputs

i have an Oled display to display text when button is pressed

when i enter code for just 1 button text displays fine untill i release the button

when i enter the rest of the code for to other buttons the text starts to flash on the display

what am i dooing wrong or missing ??

void setup() {
if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
Serial.println(F("SSD1306 allocation failed"));
for (;;);
}
delay(500); // Pause for 2 seconds

// Clear the buffer.
display.clearDisplay();

// Draw bitmap on the screen
display.drawBitmap(0, 0, sikistein, 128, 64, 1);
display.display();

delay(2000);
display.clearDisplay();
display.display();

display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(0, 0);
display.println("Welcome SikiStein");
display.display();

delay(2000);
display.clearDisplay();
display.display();

//configure pin 2 , 4 , 7 as an input and enable the internal pull-up resistor
pinMode(2, INPUT_PULLUP);
pinMode(3, OUTPUT);
pinMode(4, INPUT_PULLUP);
pinMode(5, OUTPUT);
pinMode(7, INPUT_PULLUP);
pinMode(6, OUTPUT);
pinMode(9, OUTPUT);

display.setTextSize(3);
display.setTextColor(WHITE);
}

void loop() {

//read the pushbutton value into a variable
int sensorVal = digitalRead(2);
int sensorVal2 = digitalRead(4);
int sensorVal3 = digitalRead(7);

if (sensorVal == HIGH) { // clutch
digitalWrite(3, HIGH );
} else {
digitalWrite(3, LOW);
}
if (sensorVal2 == HIGH) { //e-brake
digitalWrite(5, HIGH );
} else {
digitalWrite(5, LOW);
}
if (sensorVal3 == HIGH) { //front brake
digitalWrite(6, HIGH );
} else {
digitalWrite(6, LOW);
}
if (sensorVal == HIGH && sensorVal2 == HIGH && sensorVal3 == HIGH) { //pomp motor
digitalWrite(9, HIGH );
} else {
digitalWrite(9, LOW);
}
if (sensorVal == LOW) {
display.setCursor(0, 0);
display.println("Clutch ");
display.display();
} else {
display.clearDisplay();
}
if (sensorVal2 == LOW) {
display.setCursor(0, 0);
display.println("E-Brake ");
display.display();
} else {
display.clearDisplay();
}
if (sensorVal3 == LOW) {
display.setCursor(0, 0);
display.println("Front Brake ");
display.display();
} else {
display.clearDisplay();
}
display.display();
}