How do I execute two tasks at the same time

He doesn’t need to do anything. What you should do however, is take a step back and think about what you are trying to do and why. If the current system is not working, then maybe you need to redo it completely. If you can’t understand how or why a process is working, then do some research on your own. Sometimes a little breather will open up your eyes to new possibilities as well.

Good luck.