Endurance Tier 5 Challenge Impossible?!?

@BazeMalbus I appreciate the help I can finally see your comments. And yes I am aware of the errors I made. This game was kind of a thing on the side. I wasn't really paying attention lately, mostly due to the fact that up until recently I played SWFC instead. But originally when the game came out I started it and played for awhile and did well. Then I quit for about a year. So that should explain why I'm working with an old meta. I choose to keep going with it because I had dedicated so much already and most of the toons I use, ie Poe n Rey, are pilots. (Been working on finn, it's not quick) I swapped to Poe because either was using st Han, and he is terrible. I needed a new tank to advance in arena. And I have Rey because I received her early on and she hit hard, which at the time I didn't have anything that did so I just kept her. I'm easily top 20 in fleet arena, and only just under 500 in squad arena, for obvious reasons. However the teams that beat me are usually much higher power than I am. I have been working on pheonix (pilots) and will be ready for the next thrawn event. I have been following proper channels lately to figure out who and where to go. Issue has mainly been everyone's is advice is oh, hey spend a few months on his really hard to get character he's the way to go. And I'm sitting over here like....uh...well that does nothing for me. So I've been advancing along certain lines and learning different mechanics throughout the game. Oh, and I beat the stupid challenge. For those of you who said my ships sucked, I beat the first time I tried today. Only improved a few things for my pheonix flight crew and a * on mace. And the only reason I wanted that ship is because of the rewards at the end. I need then to advance my current ships. Since I don't have a 5* executrix I don't have access to max the skills on ships. Working on it, But it's slow. Anyway. As soon as I get thrawn I'll start heavily into my DS stuff. Thank you again.

@M4sterM that was kinda rude, I came here because I couldn't find the information I needed. And I only have access to so many 5* mods. I'm aware of how the system works. That being said thanks for the website that was actually helpful-ish.

@TVF I'm aware it's a silly title, it was meant to grab attention. I am new to this website and my previous posts didn't receive many responses. Therefore I created a headline to elicit the responses I was hoping for....but yeah I didn't actually mean it was impossible. The game just doesn't make sense some times. The rng really messed with your head.