A scary thought that could lead us all to a happier life (maybe)

I came across a thought the other day that scared me.  Said thought came in 4 parts.

1. What if determinism is true? If so, we really don't have any control over our actions.
2. What if the theory of the Big Crunch is true? The universe expands to a certain point and then contacts back to a singularity which itself leads too...
3. Another Big Bang.  The whole process starts again, but what if...
4. It expands exactly the same way as it did before?

If all the above are true, I may have already written this post billions of times.

However, this is probably not the case, yet it does lead me to ask myself this: if I am fated to repeat my life for infinity, do I really want to settle for second best? Do I really want to work in an office for all eternity, or do I want to peruse my interests in writing and creativity?

If I am - if we all are - to repeat this life forever,wouldn't it make sense to for us all to get along and be the best that we can be as a species?