Nausea and anxiety help

Almost 8w pregnant. Other than a small amount of spotting (got checked out), everything has been normal. The past week or so I've developed nausea, and I've been so tired. However I've also become increasingly anxious that something is going to go wrong, the stress of which seems to be adding to the nausea.

Please give me some tips as to how to stay in control of my emotions - I know the data, don't need that, it's not that comforting to me as I'm generally an overthinker.