SSD1306 OLED - sample code isn't working

Could anyone help to solve an issue with my code?
I have 3 screens, first screen "one" on the beginning, then second screen "OLED OFF?" and third "analogRead(A5)"
until I change screens by button (setWatch) and have no intervals set then it works really well, no lags, but when I want to update this analogRead(A5) informations every 500ms then I noticed that I can't switch to the other screen just by one push of the button, sometimes I need several or dozen push to do it, when I don't use intervals it works again,
what should I change to be able to have few screens where I can watch on different analog values updated every 500-1000ms?

function OLED(){
clearWatch();

I2C1.setup({scl:B6,sda:B7});
var g = require("SSD1306").connect(I2C1);
g.clear();
  g.flip();
  
pinMode(B14, 'input_pulldown');

var BTN22 = B15;
var screen = 0;
var battery = analogRead(A5)*2*3.3;

function screens(){
  g.clear();
  g.setFontVector(15);
  g.drawString("one",25,20);
  g.flip();
}

function screens2(){
 g.clear();
 g.setFontVector(15);
 g.drawString("OLED OFF?");g.flip();
}

function screens3(){
  battery = analogRead(A5);
 g.clear();
 g.setFontVector(20);
 g.drawString("" + battery.toFixed(2),20,20);
 g.flip();
}


setWatch(function(e) {
  clearInterval();
    screen++;
    console.log(screen);
    if(screen === 0) screens();
  if(screen === 1) screens2();
  if(screen === 2) screens3();setIterval(screens3,500);
  if(screen >= 2) screen = 0;
},BTN22, {repeat: true, edge: 'rising', debounce:150});

           
OLED();