Good Morning SoleSource,
I hope you're feeling a bit better this morning. Its tough changing coping stategies like over-eating that you have been relying on for years - particularly if you are feeling low and are more likely to fall back on those habits.
At the beginning of last year, I made a similar decision to change my life for the better.
I had a BMI of 53 - approx 12 stone over the optimum BMI range for my height. I wasn't happy with how I looked, but more importantly I wasn't happy with how I felt, the things I found difficult because I wasn't fit. I knew I was eating too much, particularly of chocolate and other 'treats'. The thing was, although I understood that these choices were making me get bigger and sadder, at the moment of eating I was so in need of that little bit of comfort that I couldn't think of the bigger picture. So it was really about my mood.
What motivated me to change was that my DH and I had been unsuccessfully trying to concieve for 5 years. I had irregular cycles and thyroid problems. I'd always planned to lose weight some day but it was realising that if I kept putting it off, I might never have children. Certainly my GP was of the opinion that losing weight could help us concieve naturally, and I reckoned that even if it didn't I'd be more likely to get help to concieve if my body was in a healthy state to carry a baby.
I started weighing myself reguarly. I cut out most snacks of chocolates and other sweets. But I think the biggest difference was that I really looked at recommended portion sizes on packets, and cut down the amount I was eating at meals. e.g. If I had beans on toast, previously I'd have has a whole tin of beans on 4-8 slices of white bread but I changed to having a third to a half of a can of beans on one or two slices of wholemeal bread. I more than halved the amount of calories I was taking in from that one meal without really changing what I was eating a lot.
In around 9 months, I lost 6 stone. It was mostly through food rather than exercise, though I did try to be a little more active as well - just small things, I still need to get better about exercise.
My weight loss is on hold at the moment. I am 37 weeks pregnant, concieved naturally. I have though managed to keep my weight gain in pregnancy low and intend to start again once baby is here and we've established breastfeeding. 
Okay, I've rambled on quite a bit here but my point is, it can be done, really! I didn't join any program or go on any faddy diets. I just ate smaller portions and replaced some foods with healthier options - like having a side salad or veg on my plate, wholemeal rather than refined etc and monitored my weight. I didn't even give up chocolate completely, but when I do eat it I only have a little, though if I do binge I don't feel terrible about it (which leads to more binging) I just start eating healthily again at the next meal. Thin people rarely beat themselves up over havin a pizza or bar of chocolate, they just don't do it often.
I managed to put my long term happiness before that little comfort food used to give me, and the odd thing is, very quickly I stopped needing that comfort - without the sugar lows, I didn't really need the sugar highs so much, I started feeling good about my body.
I also realised it wasn't just about getting pregnant, it was also about wanting to be an active parent able to run around after my little ones. It was also about me being able to think about doing things that I didn't do because I was overweight - horse-riding, some sports, wearing nice clothes etc. I haven't managed everything yet as the pregnancy has changed my priorities but they are still things to look forward to.
So that's the weight loss and related mood aspects.
I totally understand that you want a relationship, I really do. But you need to be a bit more picky! :) People with low self-esteem who are desperate for any relationship at all, are in danger of ending up with someone who preys upon that need and abuses them because they know you'll believe that you aren't worth better.
I'd concentrate on doing things for you. Eating better, moving more, taking up hobbies and interests that you've always wanted to. Getting that councilling and furthering your education through classes. Volunteering or working etc. Create the life you want (and you do deserve it, just as much as someone without weight struggles), be more sociable (I struggle with that one! so do it in a way you feel comfortable with) and you'll begin to attract new friends and potential partners into your life that would suit the life you want to live.
Its not that you will be miserable until you reach your goal weight/job/relationship/etc btw - you begin to feel better as soon as you start making small changes and realise that you are taking charge of your life again instead of just reacting to the world as it happens around you.
For the record, I'm not a looker, and I have a fantastic husband who finds me attractive as well as a great friend. He's loved my body through putting on weight, losing it and having saggy skin and now pregnancy. People who aren't supermodels can find love, sexual attraction and happiness - honest!
The person(s) who take your college class should be able to give you a reference for job/volunteering work.
Hope that helps. Take care of yourself, you're so worth it. (sorry for the essay... its a bad habit of mine
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