Kay, fox... but you may want to consider sitting down a bit & perform a quick rampage over gameplay features and elements - i find it to be quite inspiring to just know EXACTLY how & why, this and that into the game itself work.
Fully grasping such a giga context takes time but it can actually improve any modder's ability to re-invent the wheel, so to speak.
Just designing tech_trees requires thorough knowledge of many things while inserting a few ships here & there may also be tied with comprehensive (or logical, timely & efficient) warfare actions. Etc.
Thus, play. It's fun too.