How could I sleep well?

I have insomnia. Or I should say I always sleep at the wrong time, like daybreak.

I try very hard to sleep early, like today, I slept maybe at 1am. Everytime I sleep before 5am, my dogs would do something weird - play with poos or vomit in front of me................I feel so so so so depressed by this. I feel like killing myself as my life is no longer mine. My sleep can never be redeemed. Can I just take medicine that render some sleep??? I wanted to sleep early so I could get up to be more attentive to my work.

I dont know what to do. I cant be positive anymore. I feel like swipped into a blackhole. My breath, my blood, my sweet, my desire, my energy - sucked into it.