How do I know if a Google script is actually running?

How do I know if a Google script is actually running?

Am an admitted newby here. Please bear with me. I hope I am asking
intelligent questions. If not, please assist so I can tap into your
collective wisdom.
I have unwanted emails in my Google Gmail account.
Many are marketing related, and definitely unnecessary after 7 days.
Browser Google or Firefox
OS WIN 7 Pro.
Thus I wish To delete emails over 7 days that have the delete me folder
assigned, and archive other non delete me assignment.
The code for a small sample script that suggests the issue, which I found
searching for a simple solution is:
function cleanUp() {
var delayDays = 7 // Enter # of days before messages are moved to trash
var maxDate = new Date();
maxDate.setDate(maxDate.getDate()-delayDays);
var label = GmailApp.getUserLabelByName("delete me");
var threads = label.getThreads();
for (var i = 0; i < threads.length; i++) {
if (threads[i].getLastMessageDate()<maxDate)
{
threads[i].moveToTrash();
}
}
}
function archiveInbox() {
// Every thread in your Inbox that is read, older than seven days, and
not labeled "delete me".
var threads = GmailApp.search('label:inbox is:read older_than:2d
-label:"delete me"');
for (var i = 0; i < threads.length; i++) {
threads[i].moveToArchive();
}
}
My questions are: How do I know "delete me" is running? I click on run and
then it says it is, but nothing happens and the size of the number of
emails in my gmail account is the same.
Also ran the 'archive me' script and nothing seems to happen even though
it shows it is running.