Morning sickness advice

hello ladies, Im in my 7th week and have had consistent nausea everyday all day. I am so hungry but everytime I eat or think of food I gag.  Ive tried the crackers, that made it worse. Ate some bananas and that just added on to it. Drinking soda seemed to help for a bit but not ideal lol. 
What do you guys do to help your nausea? literally dying for advice here