Any tips to stay focused and less tired during our menstrual cycle

I sometimes struggle with initiation and finishing tasks. It's especially hard now that I don't take ADHD meds due to other conditions.

Also, it's that time of the month. It's been okay but it does slow me down a lot.

I really want to make it goal next year to start and work on goals I always wanted to do, but the timing was right. Any advice would be great appreciated!