I know we're not quite at the end yet but I was just thinking about this.
For me my high point has definitely been the way my teen daughter has really come out of herself since leaving school, she's been like a different girl and it's been the best thing to see. She had some real struggles previously and it's such a joy (for both of us).
Also had some really great professional things happen too
Low points, not personal but so much turmoil going on in the world at the moment, it's such a worry to contemplate where it's all heading.