Hello
Are you using this instruction to review your restore points? https://support.microsoft.com/en-us/windows/experience/backup-recovery/system-restore
If those are indeed all you have, unfortunately, older ones are no longer available. Windows cannot restore or recreate a restore point if it is not there
To prevent this from happening again in the future in case you need to keep more restore points,
Search for "Create a restore point," select the C: drive, and click "Configure." Make sure Turn on system protection is selected, then increase Max Usage, perhaps to 5 to 10 percent if sufficient disk space is available. Microsoft confirms this setting controls how much space System Protection may use.
This may help points last longer, but System Restore cannot guarantee that a point will remain available for two weeks. For dependable two-week recovery, use scheduled full system-image backups rather than relying solely on restore points.