Is it Hopeless?

[12hourhalfday]

I am an IT professional for a large company. About a year ago my company reclassified me as hourly. I get a lot more overtime now which is nice but I do not have the kind of free time I had before for GTD. I am so swamped right now with extra work and because of budget cannot have overtime approved. I need to restart, recollect, and reporcess everything in an uninterrupted setting, the problem is that nature of my job is fast and furious interruptions. When I needed to do this as a salaried employee I came in on the weekend but now that I am hourly I do no have tis option (and this office is really strict about unpaid overtime) GTD was the best thing that ever happened to me. Am I doomed now?