I don't know much about the SLP-A certification because they don't have it in my state. If you can't find employment there, try volunteering/shadowing somewhere in addition to whatever you do for a living now. I think this is a great way to learn about the field, network, gain experience, and possibly secure a LOR for the future. I did this for a semester and I think it definitely helped my application. I imagine this might help you to get an SLP-A position in addition to getting into grad school sometime down the road. Good luck!