Hi Pjmaussie and welcome

Congratulations on deciding to tackle your weight issue. It's a really tough process and I'm sure most of us out there can understand how you feel. You say that you have 60+ kilos to lose, but I think you'll find the process easier if you break that number into more manageable chunks. 60kgs is a daunting process, but it can be done!
As a final goal, I'm aiming to get down to about 60-65kgs. I started off at 115kgs, and when I reach goal, that will be a good 50-55kgs gone. I don't focus on the overall number, instead I break my weightloss down into more attainable targets. For example, when I first started, my BMI (Body Mass Index) was 42.24! One of my first goals was to reduce my BMI to under 40. Another goal was to get under 110kgs. Another was to get down to 105kgs. Then to get back into double digits. You get the idea!
If you haven't already, you should jump onto a site like My Fitness Pal (
www.myfitnesspal.com) or Calorie King (
www.calorieking.com.au) and work out how many calories you should be eating, based on your height and weight. Both of these sites are free to use and are really good! Once you know how many calories you should be consuming, you should aim to stay just below this mark every day. If you're too restrictive or consume too few calories, your body will be shocked by this and enter "starvation" mode. Initially you'll see a reduction in weight, but then your body will attempt to cling onto your current fat stores, which will ultimately make weightloss more difficult.
In theory, weightloss is simple. You need to eat less and move more. You will lose weight if you consume less calories than you expend. However, actually doing this is much harder, and I do know how you feel! It's a constant battle for me, but it does get easier.
Personally I'm not a huge fan of meal replacement programs. I believe that they are good to initially kickstart your weightloss, but I don't think they're sustainable in the long run. However, if you just do it for a few weeks, you might see some good results which will encourage you to continue your weightloss journey. This is the only benefit I see from these products. They are also quite expensive for what they are!
Before you started Optislim, what was your diet like? Do you enjoy healthy foods or is that something you struggle with? I think it's possible to lose weight just by eliminating as much "crap" as you can from your diet and by focusing on eating as healthily as possible. Replace processed foods, chips, biscuits, cakes, lollies, chocolate, take aways etc with fresh fruit, vegetables, lean meats, low fat dairy products, nuts etc and you'll start to see a difference on the scales.
In relation to not being motivated to exercise, the most beneficial thing you can do is just to get up and force yourself to do it. I have days (like today) where I simply do not feel like doing any exercise at all. Today I just wanted to have a lazy Sunday and sleep in, but I forced myself to get up and go to the pool and swim my usual laps. And you know what? I felt so great after I'd done it! I felt like I'd won a little battle with myself!
I recently read a book by Michelle Bridges (trainer on the Biggest Loser) and she says that everyone lacks motivation to exercise at times, even herself. She said that she makes a deal with herself on days like that: she must get up, get changed and do 10 minutes of exercise. If after 10 minutes, she still feels awful/unmotivated, she'll allow herself to go back to bed and sleep in. However, she's never had to actually do that, because once you've gone to the effort of getting dressed and doing 10 minutes, you might as well finish it off!
So just get out there and have a go! You don't have to do a lot - just set yourself a small goal and gradually increase it as you build your fitness up. Pick a form of exercise that feels the least "awful" to you, that way the time you spend doing it will go faster. Swimming and walking are my favourites. I used to have a gym membership and I hated going there with a passion. I was just not cut out for working out in a gym and I dreaded going. The only thing I lost in 5 years there was about $2000! Walking is good because you can do it at your own pace and listen to an ipod or something to distract yourself. Swimming is great because to me, it doesn't feel like exercise when I'm not getting all hot and sweaty!
Anyways, I've ranted on for long enough here so I'd best be off! Good luck with everything and keep us posted. You can do this!