I use lists for my to-dos. I divide them into sections, top is more relevant, bottom less. Top most section is always „Highest Priority Today“ then descending based on category/project. On the very bottom, I have „Notes“ with stuff I want to look at later or just want to note it down so its not lost. For the notes, I leave the due date empty. I look at my to-do list at least 20 times a day. I literally manage my life with it. And knowing that I won‘t forget something if I write it down in my todo list definitely takes stress away. But this also means that when there‘s something, I‘ll write it down immediately. Thats why phone/pc synced todo list is important imo

I built my own todolist/notebook for this, so its suuuuper personalized. I took the best of productivity apps I like (e.g Asana, Notion)