bit more like it

function getR(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.floor(Math.random() * (max - min + 1)) + min;
}
Math.fmod = function (a,b) { return Number((a - (Math.floor(a / b) * b)).toPrecision(8)); }

var longer = document.getElementsByClassName("Numbers HighlightedText UserBalance")[0].innerText;
var long = document.getElementsByClassName("Numbers HighlightedText UserBalance")[0].innerText;
var loss=2;
var fraction=20;
var basebet=longer/fraction;
var more = (document.getElementsByClassName("Numbers HighlightedText UserBalance")[0].innerText);
var target = 12000;
parseFloat(document.getElementById('BetSizeInput').value = (basebet));
function dobet(){
var chance  = 49.95;
var secret = parseFloat($('#LastBetInfoSecret').html());
var balance = document.getElementsByClassName("Numbers HighlightedText UserBalance")[0].innerText;
var nextbet;
var previousbet=document.getElementById('BetSizeInput').value;
document.getElementById('BetChanceInput').value = chance;
if (secret > 499499) {
loss++;
}
if (balance >= (more*1.5)) {
nextbet=basebet;
more=(parseFloat(balance));
}else if (Math.fmod(loss,(getR(11,16)))==0) {
nextbet=previousbet*2;
}else{
nextbet=previousbet;
}
if (balance > target) {
//stop();
$('#notification').html('Relax & Reload');
alert('Relax & Reload');
log('Relax & Reload');
return;
}
parseFloat(document.getElementById('BetSizeInput').value = (nextbet));
  $('#BetLowButton').click();}

setInterval(() => dobet(), 3000);