answer broadly by saying yes an that with practice you will improve.

You just reflected on your confidence in working with sequences and series. Does your confidence (or lack thereof) reflect the concepts learned in this unit only, or is it related to previous concepts, and how confident you were with those? Explain your answer. two sentence maximum write in first person

Yes, my confidence in working with sequences and series is mainly based on the concepts learned in this unit. With more practice and understanding, I believe I can improve my confidence in this topic.