Hi and welcome!
I'm new to dieting as well, so I can´t advise you very much, but listen to what people like chazzy tell you and you'll be on your way sooner than you expect!!
What I can tell you is that exercise is the key to it, so make sure you include it in your daily routine. I know it may be hard in the beginning (I found it extremly hard - and I still do) but it's really worth it!!
Remember: NOTHING TASTES BETTER THAN BEING SLIM FEELS!