Configure proper cron wp

Hi all,

Sorry if this has been posted somewhere before but I have looked everywhere.

I have created a tipping plugin that requires checking external xml files to get results. At the moment I have it running on the wp_load hook but that is messy and can make page loading quite slow.

I disabled wp_cron and setup a manual cron on my server to run wp_cron every 5 minutes but I don’t know what hook to apply to get them to run when wp_cron runs.

My backup plan is just to create my own cron file and use that but I need the wp_hooks and am unsure how to add them.

Any help would be greatly apreciated