Anyone has advice on how to deal with anxiety around driving lessons and test

Im supposed to have a driving test the 20 of october but due to the fact that i was often sick the last 2 mounths i couldnt train at all and im also a pretty anxious driver, that the moment i start making ome mistake it will turn into an avalanche and recently it got so bad that in those days the anxiety was so bad i could eat or sleep without meds