This is the 1527th most frequent Turkish word.
gücüne
"To your strength" or "to your power."
Here, 'gücüne' (your strength) is used in a possessive sense, indicating that the person's strength is the factor upon which success depends.
Başarı gücüne bağlıdır.
Success depends on your strength.
In this sentence, 'gücüne gitmiş' refers to an emotional reaction, suggesting that the words impacted the person's sense or pride negatively.
Onun söylediği şeyler gücüne gitmiş.
The things he said upset your feelings.
Here, 'gücüne' is used in the context of referring to the inherent strength or robustness of an object.