Hi there, @immarojas,

Thanks for reading and for your reply.

Does enlightenment means finding life's purpose or oneself?

Well, from my experiences/study/practice of Yoga/meditation, I would say that life's purpose (at least for us at this point in our evolution) is finding one's Self ... the True Infinite Self, not the small ego self we generally call our self, of course :) ... in order to then become enlightened.
Once we have found It ... enlightenment is completely living life in accordance with that Self-knowledge as central.
This means acting entirely in harmony/alignment with Source/One/Soul as mentioned in my post, and thus not generating further karma.

If unsuccessful, will this life just be creating karma in addition to previous lifetimes?

We will generate karma to add to that which we already have so long as we do not act in harmony with the Truth of the way the universe works.
That is the law of nature/karma.
However, we can have partial success in a single lifetime, generating less karma, processing existing karma, and make positive progress along the path.

I hope this helps.
It's just my understanding.
:)

Love Peace Freedom.