Agile Project Management, should I go through with this?

I’m currently a social media manager at a website, market, and software development company. I enjoy what I do, but My boss wants me to learn Agile. I already expressed disinterest in it but he’s pushing for it. I barely understand what it is or what the point of it is. He said the company would pay for my certification but he didn’t say anything about a pay raise yet to actually perform it. From what I’m seeing, it takes many hours to get certified and Project Managers make between 60k to 120k a year which I know my boss can’t afford even 60k. We’re a very small team with a very tight budget. I’m already underpaid ad it is. Another thing, I’ll be moving in a year. I’m wondering if going through with this is even worth it.
Agile Project Management, should I go through with this?
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