how to gain patience back??

🐘🐘🐘 • 👧🏼 born 1/19/16. 👼🏼 lost 9/15/17. 👼🏼 lost 11/26/17.
Hi.  I apologize in advance for the long post.
I have a one year old who has had a rough go recently. She's had 5 UTIs since December, resulting in 50 days total of antibiotics. We are currently working with a urologist but we don't have any answers as to why just yet. Last weekend she broke out in hives, and developed an ear infection. She was on steroids and all sorts of creams for 5 days. She's still on antibiotics for the infection. Meanwhile my uncle died on Sunday night. My husband has never really helped out. My parents usually help but they flew out to my uncles state when they found out he was very ill, about a month ago. Anyways, due to all of this illness my daughter has been unbelievably fussy, needy, bossy, sassy etc and I have lost patience. I snapped at her today, and I cried with her for two hours straight. I just need to restore my patience. Does anyone have any ideas or advice?