For most of what we do, there's no point in holding off, on overthinking. Done, even if imperfectly, is better than saving for later. Review it now, read it, skim through it, do it with care, but don't postpone. Engage or not. If, otherwise, you let the to-do list grow, you'll accrue increased levels of stress. Either say no or act soon. It makes sense to squeeze yourself, to put the extra mile, on the important things. The hard part is to identify what those things are to ignore the noise or deal with it quickly.