But to use the present perfect tense well, you may need to polish up on some useful irregular English verbs and remind yourself about their past participle form.
The point is, I knew my formative years would be well-documented, which meant I needed to polish up some of my early academic credentials, especially East Texas Tech.
Polish up. It means to change things, to improve things, in order to help the image of something. I'm going to polish up my sales pitch before I send my next emails.