Which free résumé tools do you trust? after 6 years as a call-centre agent

I am looking for free tools that do not spam me. I do not usually post, so bear with me. A spreadsheet with dates and follow-ups worked a little. Are there tools to avoid?

Thanks for writing this out. I went through something close to it 11 months ago, and it settled down once I kept a simple log of every call and form.