When we take pride in something, we are expressing our satisfaction and admiration for that particular quality or achievement. However, while using the same phrase repeatedly, we may run out of synonyms. Here are a few alternatives to "pride yourself on something":
1. Take great satisfaction/pleasure in
2. Find joy in
3. Have a sense of accomplishment in
4. Be pleased with
5. Cherish
6. Treasure
7. Hold in regard
8. Value highly
9. Esteem
10. Admire.
Using any of these synonyms will change up your language, allowing you to express the same sentiment with slightly different words and keep your writing or speech more engaging.