Naturalization after divorce

You have nothing to worry about. You can apply under the 5-year rule. If you look at the N-400, you will notice that you are only asked to bring proof that you are still married to and cohabiting with the US citizen if you are applying under that category at the 3 year mark. You may file the N-400 90 calendar days prior to the 3 year mark.
Then you may file again 90 days prior to the 5 year mark as a permanent resident. The N-400 does ask about your previous spouse(s) but it's literally biographical info and the immigration status at the time the marriage ended. Done.

At the time your I-751 was adjudicated, it was decided that you had entered your marriage in good faith and not to evade US immigration laws; i.e., you presented solid evidence of bona fide marriage. Your naturalization interview is in fact a naturalization interview. It will not turn into a I-751 Part 2. That won't happen. You won't be asked why you two divorced. That's out of line and rude.

When I did my citizenship at the 5 year mark, I was still married to my spouse. Because it was at the 5 year mark, I went to the interview by myself and brought zero paperwork/joint nothing from our marriage. The ISO asked "How come you didn't do it after 3 years?" I laughed and said "I am a broke student" and I was. I was in college at the time. He saw my tax returns and it was true.

So The interview will be a 10 question civics test. It's impossible not to pass it. And then they have to get through a zillion questions about terrorism and genocide in that interview. It's the last chance they have to catch someone that shouldn't be a citizen. So file that form, study your civics, and look nice, it's an exciting day and ISOs do not rain on your parade. They are all smiles and cheerful even though they don't have to. I was pleasantly surprised.

usimmigrationforms.com/us-citizenship/apply-for-citizenship/

All the best to you.