Completed training while job hunting, welding apprentice here

After 5 weeks of evening classes I have a new certificate. Any experience at all would help. I already had an interview request. What should I aim for next?

Congratulations! Put it at the top of your résumé and mention it in your cover note.

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