Single and trying not get stressed out!

Do anyone have any tips to stay stress free? I have a lot on my plate right now and I am in no mood for judgment so I'll keep my story to myself. I am currently 8 weeks and 5 days with my 3rd child in like 8 years. I really don't have a strong support system and me and the father aren't on good terms. During the day I know I cry about 5 or 6 times throughout. I am usually a gamer but these darn hormones make contacts super blurry so I don't bother with gaming right now. I really just want to sleep but my mind won't shut down. Anyways any tips will be helpful