Concentrate on your study first, then go ns, after ns, find a
job and then carry on your relationship again.
TS you are still young, there are more opportunities ahead of
you.
Remember, if you fail your exam, your opportunity will be gone
forever, you will lost your time and effort, all down to the
drain.
Let your gf know how important the exam is. You need to pass the
exam by all means and tell your gf she need to understand your
stand. Good luck.