I discovered a short memory loss on myself. It's more like an instant blockage rather than a memory loss. Whenever I have multiple tasks to cover in a short am

I discovered a short memory loss on myself. It's more like an instant blockage rather than a memory loss. Whenever I have multiple tasks to cover in a short amount of time, my creativity levels stutter. I find myself unable to come up with quick and creative solutions instantly. I guess I need to learn how to work under pressure although I've read that multitasking is counter productive. I find short breaks helpful but most of the time I can't afford them because of the urgent nature of the tasks. Writing down helps a lot when I do routine actions, but I still believe that this might not be the best method to incentivize creativity.