I vouch for that. That’s how it is done. Good job laying down the steps; want to add that job hopping is important too early on.

1. Get a phone help support job 1.5. Keep applying to get other better paying support job, within or outside the company
2. Work in parallel getting trained and certified in A+ etc 2.5. Keep applying to get other better paying support job
3. Get more certificates 3.5 Keep applying to other jobs of interest and desired pay
4. Repeat step 3.5 until retirement.