Yes, I have definitely done this. For me, it's sort of like I get overwhelmed with everything I have/want to do, can't pick out one thing to focus on, and waste my time instead. I could come up with a list of 20 productive things I could be doing today, but instead I'm cooking, reading novels, and fooling around online.

A few things help me in this situation.

1. I just do the first thing I think of doing. Like right now, I see that there is a bag on the floor and some slippers. I can put those away without thinking about it or wondering whether now is the perfect time to do that.

2. Set a timer for five minutes. Do whatever you are avoiding for five minutes.

3. Go for a walk. Exercise makes me more productive, don't ask why.

4. I give up and go do something else for a while. If you are not going to study anyway, no point in wasting 12 hours at the library, right? You might as well do something halfway worthwhile.

Those are just a few things that sometimes work for me -- I hope you get some studying in!