You need to try and get a degree if possible, that will be way more helpful in job hunting than a certification.
Yes it is difficult to get a network security job because:
A)even large companies only need one or two
B)smaller companies usually will just have their network admin be in charge of this
C)they usually will only give these jobs to people with a lot experience in the field because there is a ton riding on that position - an entire companies data safety is in the hands of one person, maybe two. So those jobs are extremely hard to come by.
If this is something that you were wanting to do I would definatley try to get a networking degree at a 4 year university. If that isn't a possiblity try to get your security+, network+ and possibly a Cisco certification.