Correctly handle errors

[FollowTheProcess]

Summary

[codecov]

Codecov Report

Attention: Patch coverage is 35.48387% with 20 lines in your changes missing coverage. Please review.

Project coverage is 72.05%. Comparing base (d7be81d) to head (38356ef).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
main.go	28.57%	11 Missing and 4 partials ⚠️
internal/count/count.go	50.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #69      +/-   ##
==========================================
- Coverage   73.60%   72.05%   -1.55%     
==========================================
  Files           2        2              
  Lines         197      204       +7     
==========================================
+ Hits          145      147       +2     
- Misses         42       46       +4     
- Partials       10       11       +1     

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