The best advice I can give you is to look at the job postings for the jobs you are interested in doing and see what certifications they are requesting. What we would tell you may be different than what employers are looking for.
I'd recommend sticking with the CompTIA certifications unless you're looking to work in a Microsoft Shop (where Linux is a bad word). Standard order would be A+, Network+, Server+, and then Security+. That would give you a good solid foundation to build upon. Best to take the exams while the information is fresh in you memory.
Now the really bad new, real life is nothing like the books or the certification exams. Education and certification will get you the job, but you'll still need to learn how they do things.