Continue striving; don’t give up.
Sigue luchando; no te rindas. (sige luchando; no te rindas.)
"No matter what happens, just keep fighting."
"No importa lo que pase, solo sigue luchando." (no importa lo que pase, solo sige luchando.)
to begin to improve after a difficult period
You said exactly what I was thinking
to process and analyze large amounts of data
Manage to survive or cope with difficulties.
A very complex or unsolvable problem.
To relax and not worry too much.