I was also going to suggest a garden. I find this soothing. Swim? Walk? Make something for bf on his return?(if you sew, knit, crochet, carpentry)---write, exercise for sure, indulge yourself with small treats (nice soaps/lotions/get a massage/...) dance to music around the house...
and do find a book that you can get into----a big one! Good luck!! School will help, may be some things to do there...