Apple Script to refresh safari at intervals and then to run key codes at interval

Question

I'm trying to incorporate following tasks.

1. Refresh Safari every minute

2. After every refresh, press the down and right arrow at specific intervals.

My Attempt

I rattempted the following code but it's not working. The refreshSafari gets called once but doesn't get called again. simulateRightArrowKeyPress works fine as expected.

-- Function to simulate the right arrow key press
on simulateRightArrowKeyPress()
    repeat
        tell application "Safari"
            activate
        end tell
        
        delay 2
        
        tell application "System Events"
            key code 125
        end tell
        
        delay 3
        
        tell application "System Events"
            key code 124
        end tell
    end repeat
end simulateRightArrowKeyPress

-- Function to refresh Safari
on refreshSafari()
    tell application "Safari"
        tell front window
            do JavaScript "location.reload();" in current tab
        end tell
    end tell
end refreshSafari

-- Function to run the combined task
on runScheduledTask()
    repeat
        refreshSafari()
        simulateRightArrowKeyPress()
        delay (1 * 60) -- x minutes in seconds      
    end repeat
end runScheduledTask

-- Call the function to run the combined task
runScheduledTask()