I've tried it but it and wasn't repulsed but decided that it wasn't for me, I'll stick to coffee.

As for the weight loss, well done for taking matters into your own hands and wanting to make some positive changes. Maybe do some research on sugar abd carbohydrate intake; reducing both by 50% will usually see weight fall off. Add in a 40 minute walk and some maybe a few body weight exercises and you'll be good to go.