First Time Fan Edit - Seeking Advice

Hello! Just recently joined this community. I am near the end of an edit I have been working on for over a month. I have taken all 62 episodes of Breaking Bad, and cut and condensed them into one continuous, 7 hour film. Of course, the narrative has been altered here and there in order to do this, but I think I've done a good job.

I have a few questions that I'd appreciate answers to. Because it is a 7-hour film, it's a VERY large file. I'm wondering if this will be a problem as far as submitting this or even just hosting it in general. I have thought about breaking it up into 3 smaller films, as a trilogy, but don't really want to do that ideally. Just wondering what some think I should do based on their experience.

I'd also like a breakdown of how I should go about submitting a fan film for the first time, as it is a very different process than what I had anticipated. Any answers or feedback would be greatly appreciated. Thanks!