Yep. You're way underdeveloped on ships. Looks like you don't have a good idea of what things you can do at the same time.
That's a problem for a lot of newer players. You're told to keep a single focus but no one bothers to tell you that because there are different stores and different energies, you can keep one thing as your highest focus while still working on other things...so long as you work on those things using energy or store currency that isn't needed for your main goal.
This is exactly why you need a plan for each energy and each store listed out separately. You could be earning Zeta materials next level, but you won't be, because you don't have the right tools - ships - and so it will be that much harder to get your Jedi Revan squad up and running, since that squad needs zetas to do what it's supposed to do. Going for ships **is** working on your Revan squad at this stage of the game, and you can do it without sacrificing any progress towards character shards needed for JKR.
I will make a plan for you, if you want me to do so, but it won't look like the plans made for other people of your level since it will prioritize JKR and also prioritize getting ANY dark side ships to 5* rather than getting the best ships to 5* because you don't have the time to do this the right way.
in general, do remember that if you have a goal for level 78, you have to start at level 30 or 40 to be ready for that goal. What you have done is very similar to waiting to learn your schoolwork until the night before the test & still expecting to get a good grade. SWGOH is a game that is always very long term, and everything interrelates (ships give you zetas and crystals, and the zetas are what make good characters great, while crystals are what allow you to acquire more characters quicker and easier - there are many relationships like this in the game where to get one thing you have to spend on another).
This doesn't mean your whole game life has to be planned and has to happen the same way as everyone else does it. But it does mean you have to plan way ahead and understand how each thing is only part of a larger whole.
Now, if you're going to have a functioning Revan, you'll need good mods, which requires a high credit income, which requires Scoundrels (which include Bounty Hunters) and a team that can finish Galactic War every single day - fortunately for you, that's Bastila-led Jedi. You'll also need ships to provide the zetas and crystals you need. So we will make your high priorities Bounty Hunters, a couple more Jedi, Ships, and the prerequisite characters' shards for JKR.