Rule 1: Firstly have to handle one project well. But keep in minde that sometimes you can feel that you aren't ready but after some time in new scenerio when you find new perspective and distance to emotion aspects you start handle better also first project. Made good
Stress and pressure are highly destructive. Excessive caffeine and poor nutrition only accelerate physical and mental burnout. Even a single project can have a very destructive effect on your body. So imagine what might to do with your health - two or more parallel projects. Juggling few projects simultaneously for