My introduction

Hello you all!! Good evening. My name is Lucas. I’m Brazilian. I live in  Natal; it’s the most easterly city of Brazil. I’m a mechanical engineer. I love playing sports, (chiefly is not common. More natural: especially)chiefly soccer. I’m married. I’ve worked on finding a way to reach a good level of fluency, with the nearest locals accent (not sure what you mean: locals accent?). Well, I guess I didn’t screw all up  too much (I'm assuming you mean this introduction?), however I fell like I’m crawling, almost stuck right now. It has been such a hard task raising my vocabulary and getting better talking spontaneously. Anyway, I’m attempting a different approach. I guess it might make me move forward.

I have to guess on a couple meanings (Sorry if i misunderstood you):