First of all, congrats on your upcoming nuptuals
May you be happy together for a lifetime.
Second of all, don't worry so much about your career. If you are miserable at the call center, find another job that you like better - like others have said, life is too short and you spend too much of it at work to be unhappy with it. Everyone changes careers some time in their life, and very few people end up working in the field they went to school for. What are your passions? What is it that made you quit being a hair dresser (besides the money). If it's just the money, are there any upscale salons in your area that would pay enough? If it is not just the money, what parts of your job did you love? Maybe you could build on those - for instance, if it is style that you loved, maybe you would want to be an interior decorator or something else that is very style-centered; if it was interacting with people that you loved, maybe you would like being in sales or something else where you are constantly meeting new people.
I myself have already abandoned my college degree and I have only been out of school 2 years. Everyone had big plans for me and wanted me to major in something 'intellectual' but I wanted to be a tv producer, so I went to a small school that specializes in media and studies communications
. Well, I wasn't willing to move to LA when I graduated (I wanted to work at pbs or a local station here in boston), which it turned out meant that my $130K degree wasn't worth crap since a degree from my college apparently only means something in LA or NY. So I basically had to start from scratch. I didn't want to commit to a job that I didn't think would make me happy, so I tempted until I found one - which ended up meaning I temped for a year and a half. I realized I had to figure out a new career and considered being a vet tech (because I love animals obviously), being a real estate agent (my SO and I own multi-family houses so I know a lot about the field and I am also very outgoing), social work (I'm one of those do-gooders who wants to change the world), and being a teacher (I have worked with kids my whole life and have always made an effort to teach what I know to help people). I thought really hard about it, and I realized that of all of the jobs I have had so far in life, the only one that gave me true joy was teaching swim lessons to kids, and so off to an elementary school I went. Now I am a teaching assistant and going back to school to get a masters in education. In my perfect world, I would be a media proffesor/teacher so I could combine my love of teaching with my love of creating media, but I know that's not realistic, so I think being an elementary school teacher is a good second choice for me since I love kids so much.... Anyways, my point is, it took me two years of soul searching while I tempted to fill time to come to the conclusion, and even though the pay was (and still is) low as sin I still think it was worth it if I can come home from work feeling good about my job at least most of the time.