Low Energy and No motivation?

So I'm generally a bubbly person, but since my husband & I decided on moving out of our house (there was alot of with the house we was buying) however upon staying with my grandmother until we find a place ,every day she has something to complain about, If there isn't something she hunts (goes as far as sticking her head in our room or going into our bedroom)I do have a Job.she has harassed me when he does it for me, Today I was playing a new video game & she complained I tried to block her out however She decided to say to my four year old " is mommy ignoring you, she is on that damned game system not paying any attention to you poor thing " this pissed me off enough that I just shut the game off.my child was going from my bedroom to downstairs watching cartoons with her father & might I add she watched as I play when I have the chance to play.not to mention from 7 to 10 pm she drinks nothing but beer & starts on calling me&my mother burdens (my mother whom just recently recovered from Cancer).Me & My father are planning to split on a home (my husband has a high paying job) to help them out with finances & if they need help with my Autistic brother.As of latley I've had absolutely No energy, however though I feel exhausted I have the worst time falling asleep, and when I do fall asleep It feels as though I don't sleep enough I have NO idea if what I mentioned above would have anything to do with this or not but I am seeking advice too getting my energy and motivation back?