Since HN is such a beautiful old school websites, the pages of your submissions are denoted in the URL like https://news.ycombinator.com/favorites?id=YOURNAME&p=PAGENUM....

So you could just loop said page number in your favorite language, access the generated webpage and get the raw HTML. If you get all lines of class "storylink" and "title", you will have all the post titles and where they link. Save that into any format as simple as Excel and you have a nice searchable overview.

Always rate limit yourself sensibly when web crawling, and have fun!