holy grail

var belance = parseFloat(document.getElementById('pct_balance').value);
document.getElementById('pct_chance').value = 49.5;
document.getElementById('pct_payout').value = 2;
var ebe = ((belance/50000).toFixed(8));
var b = ebe;
var oldbal = parseFloat(document.getElementById('pct_balance').value);
var oldt = parseFloat(document.getElementById('pct_balance').value);
var f = true;
var target = 500;
var olderest = document.getElementById('pct_balance').value;
var old = parseFloat(document.getElementById('pct_balance').value);
var oldc = parseFloat(document.getElementById('pct_balance').value);
var fold = parseFloat(document.getElementById('pct_balance').value);
var nextbet;
var wild = document.getElementById('pct_balance').value;
var min =document.getElementById('pct_balance').value;
parseFloat(document.getElementById('pct_bet').value = ebe);
parseFloat(document.getElementById('pct_profit').value = ebe);


function dobet(){
console.clear();
var balance = document.getElementById('pct_balance').value;
var previousbet = document.getElementById('pct_bet').value;
document.getElementById('pct_chance').value = 49.5;
document.getElementById('pct_payout').value = 2;
 if (balance>(oldt+(b*6))) {
    nextbet = previousbet*2;
    b = nextbet;
    oldt = parseFloat(balance);
}
if (balance<oldt) {
oldt = parseFloat(balance);
}
if (balance<=(oldbal-(b*3))) {
    nextbet = previousbet*2;
    b = nextbet;
    f = false;
    oldbal = parseFloat(balance);
}
if (balance>oldbal) {
oldbal = parseFloat(balance);
}
if ((balance>=(old+(ebe*10)))||((balance>=old)&&(f==false))) {
    (((parseFloat(balance))/50000).toFixed(8));
    nextbet = ebe;
    b = ebe;
    f = true;
    oldbal = parseFloat(balance);
    oldt = parseFloat(balance);
    old = parseFloat(balance);
}
if (nextbet==null) {
nextbet = previousbet;
}
if (balance>=target) {
//stop();
return;
}
if (balance>wild) {
wild = parseFloat(balance);
}
if (balance<min) {
min = parseFloat(balance);
}
var freak = ((balance-olderest).toFixed(8));
console.log("balance made");
console.log(freak);
console.log("biggest balance");
console.log(parseFloat(wild));
console.log("lowest balance");
console.log(parseFloat(min));
parseFloat(document.getElementById('pct_bet').value = (((nextbet*2)-nextbet).toFixed(8)));
parseFloat(document.getElementById('pct_profit').value = (((nextbet*2)-nextbet).toFixed(8)));
$('#a_lo').click();
}
setInterval(() => dobet(), 1200);