Your nerves are what are going to give you the problem if you go into your flight this predetermined dread; like a self fulfilling prophecy.
Question is - if you have no history of motion sickness, especially with some previous flight time; why the sudden worry?
FWIW, I got sick on my second PPL lesson ever, so yes - it is something that most can overcome given determination.
There are many threads on APC about motion sickness. Try the search function for key words in titles or posts and see what has worked for others.
Good luck.
USMCFLYR