How can I get organized with my daily to-do for these?

Not sure what category this goes in so if any suggestions for future…

I have 3 big projects I am working on, each with a deadline right around the corner. Due to so many things they involve, I am stressed and as much as I try at the end of the day I feel like I get hardly anything done! I am staying home to work on them – I never turn on the TV, I am going from one computer to another to research plus I have paperwork scattered almost every inch of my living room, each mixing with the project of the other. I get tiny thing done here and there it feels like nothing is moving forward and even basic things like I had to complete an expense list that should take no more than 20 minutes to do, I have had it on my mind all day but with so many phone calls and things to do on the other projects I am shocked I never got that thing done and that was the last straw to come here and ask if anyone has advice on how to get things done??????