I don't really want to rain on anyone's parade here, but I will.
Every year like 20%+ of the incoming class is "diehard" about going SEALs or EOD. All of them talk will talk about how dedicated they are, and most think that they are, but only twenty-something will make it.
It's not just about crushing the PST. The guys who get SEALs are largely extremely smart (there's a couple exceptions) and do very well militarily as well. They all seek out things to challenge themselves (varsity sports is a big one) and excel at them while still managing to do well academically and in company. Doing well at the SEAL screener and on SEAL cruise seem to be the biggest factors, and I know plenty of guys who went into either of those events (especially cruise) only ever wanting SEALs and came out thinking something else, whether by their choice or being explicitly told they wouldn't get it.
By service selection, only 50-60 or so are seriously competing for those ~20-30 SEAL slots. But, guess what...those guys all have a decent shot. Only half will get it. Going to USNA isn't like applying for OCS where you can only apply for SEAL. You have to prepare for the very real possibility that you will not get it, and will serve in another capacity for five plus years with limited at best options for lat transfer.
The needs of the Navy always come before your preference and ability, and I know plenty of dudes riding ships right now (or, on occaision here in flight school) who wanted very badly to be somewhere else.
Again, not trying to be negative or turn people off. But you won't prove your dedication to getting what you want by seeing Navy SEAL movies, you prove it with four years of busting your ass and being an exceptional candidate. Even then there aren't any guarantees.
It's exactly as Hurricane12 said. To extend to that, just because you get a Service Selection as SEALs does not guarantee that you will make to earning your Trident. Not to discourage you or anything but the attrition rate at BUD/s is around 80% and after that is SQT which is not pretty. But if you can survive all of that plus 4 years at USNA, being a Group 1 major ( or 2 or 3, it may change when get to USNA; the most important thing is that you have good grades), pre-screeners, THE SCREENER, your cruise, interviewing with some very high ranking SEALs, do not get an Honor Offense (they will not let you Service Select SEALs, EOD, or Marine Corps if you in anyway commit an Honor Offense), and do not have an alcohol problem,you will more than likely have a good chance of becoming a United States Navy SEAL. This is not to discourage you at all. This is the truth.