1‘she always perseveres in spite of discouraging setbacks’
persist, continue, carry on, go on, keep on, keep going, not give up, struggle on, hammer away, be persistent, be determined, follow something through, see something through, keep at it, show determination, press ahead, press on, stay with something, not take no for an answer, be tenacious, be pertinacious, be patient, stand one's ground, stand fast, stand firm, hold on, hold out, go the distance, stay the course, plod on, plough on, grind away, stop at nothing, leave no stone unturned
informal soldier on, hang on, plug away, peg away, stick to one's guns, stick at it, stick it out, hang in there, bash on
give up, stop, quit
We take a look at several popular, though confusing, punctuation marks.