TL/DL: I have about 30 hours a week at work to do educational activities. I have nine months on my employment contract left. I don't know if the contract will renew. I want to get out of tech sales and into the technical side of things. Which certificates will enable me to do this at $100k ?

I'm making 52k now and don't want to take a pay cut. My goal is to double my income in 9 months time by learning whatever I am able to. I currently have an associate's degree in general studies. I want to know what certifications will enable me to double my income? Ideally I'd like to work remotely or be self employed with in demand tech skills. How do I gain experience after getting the certificates?

I'm not sure what I want to do exactly, but I'm behind on retirement savings and need to catch up.