Last time I took the GMAT was 6 years ago...

So 6 years ago I was a youngster and although I took a prep class I didn't do all my assignments. For some reason I did well in class so I thought I was all set, then test day spanked me hard with running out of time on both sections and scoring a painful 400. I think at the time I was just not ready, too early in my career, and I did not have as much standardized testing experience. The only practice test I took was 2 days before the test and the result was a 450, for some reason I still thought I was going to be okay on test day, I clearly ignored the warning signs and did not practice enough.

Following that experience I worked several years in the financial industry and I prepped for and passed a lot of tests including: Series 7, 63, life, accident, and health insurance producer tests, and I cram studied and passed a financial planning exam for the CFP prep. I always remembered how I messed up on the GMAT and I was far more focused when studying for my licensing examinations, I also learned the value of taking practice tests early and often to measure progress. Since then I have switched industries so none of those licensing tests matter anymore but I am thinking that prepping for them taught me the type of discipline I will need for a better GMAT score. I have always wanted to go back to school for my MBA, it's just been a personal goal but I am a bit nervous about the GMAT because my study skills are certainly rusty. The good thing is I am older, less distracted, I've had a lot more testing experience, and I feel like I am ready again.

Right now I accepted a new job and am relocating across several states, I am extremely excited for my new opportunity and the fact they offer tuition reimbursement seems like I may finally have my chance to get my MBA. I know right away I will be busy with learning my new job and fitting GMAT prep into my nights might take a few months of settling into my new position and region of the country. Does anyone have any advice on how I should approach studying again? Even general advice would be fine, I just feel a bit anxious about the whole thing. I am thinking once I get myself moved and have at least 6 months in the job then maybe I can start prepping, and hopefully after a few months of prep I can sit for the test. The goal is to start a graduate program in year 2 of my new employment, does this seem like I am being realistic?

I want to make sure I dedicate 100% of my initial focus on my new job for at least the first 6 months, then once I am past the learning curve I am eager to give this another go. I feel like I know exactly what I did wrong the first time but I can't help this feeling of lacking confidence towards it for some reason, I'm really hoping the study discipline from all my other testing transfers over to this next attempt...