Nausea please go away!

Delia • expecting our first child! so excited and happy :)
I'm at 7 weeks nd 5 days. Nausea is always present and gets worse at night. I feel like im always full and when I do eat I eat very little. Anyone have tips with what to eat to control nausea? Nausea is taking over my entire day and I'm just so tired... i feel so overwhelmed.... help