Howdy Monica. I'm new to the forum too. I'm also 25 and live in Texas. I lost 40ish pounds a few years ago, and more or less kept it off but didn't quite make my goal. This forum is great, and will be wonderful motivation.
I'm tall too, it's a different ballgame to lose weight when you're taller because you do need a few more calories than most women, and it can be hard to look at your higher scale numbers and conceptualize that they are right for you. I have friends who are shorter than me who would be horrified at being 165 pounds, but for us that's skinny!
Let's go week one huh!