If you'd like a nicer way to say it, "getting on in years" has the same meaning:
-- "Even though she is getting on in years, she still travels quite a bit."
Be aware that "learnt" is not commonly used in the US. We say "learned". Are your English teachers from England?
Also, your punctuation is spaced incorrectly. Do NOT use a space before a comma or ending punctuation:
-- If you follow this example, your spacing will be correct. See what I mean? OK, that's great!