If you want to go into networking then since you already have your A+ you should start studying either for your Network+ or your CCNA. The CCNA is definitely much more prestigious than the Network+ but the Network+ is a step towards that. You should also look into at least getting your Microsoft MCP certification only because Microsoft owns 90+ % of the market. Start looking at the major job boards like dice.com, monster.com, careerbuilder.com, etc. to see what jobs interest you and what they are asking for as far as certifications. Good luck!
In addition to what Buddyfar has said, I’ll also point out that you also need experience which takes time. The longer you work in the field the farther you’ll be able to get. It takes several years to get into that senior level position, but for the patient you’ll get there.