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In IT whether you will have a job or not depend on whether your skills are in demand or not. If too many people have your skills, you will have a lot of competition and a harder time standing out, unless you are truly exceptional.
These days even kids can build computers from parts, so what makes you special?
What do you see yourself doing 5 years from now?
How many people do you know in the industry?
How many people trust you enough that they are willing to put their own rep on the line to give you a stellar reference?
Look for the small start my friend. and do not give up. Just look for Entry level help desk position or IT call centre support , or some IT product support and after few experience there you can just improve your skills and go further .
I am little confused after reading your question, what is your question exactly?
As you are probably aware, IT has a hierarchy of positions, beginning with hardware tech and desktop support. While it is possible to start here and work you way up the hierarchy, it will take several years. A better approach is to go back to college and take some programming and software engineering courses, including IT Project Management. This way you start at a higher place in the hierarchy and have more marketable skills.
Warning: IT workers are finding that after several years of salary increases, they are being laid off in favor of H1-B or offshore workers. You may want to re-think your choice of careers, since losing your job in your mid-50's means that you will have several years of job-searching before Social Security and Medicare kick in.