After Looking at your roster I can make the following points.
You have a rainbow 4* team. Good heros mostly leveld to 3/60 with exception of Grimm in the 4th ascencion.
Then you have a dozen heroes leveled all over the place.
You have no maxed 3* heroes.
This makes you a lame duck in wars and gives you no choices for offence.
Get Li Xiu to 3/60 better 4/70 asap. She is a good tank for your level.
Bring Cademon to 3/60.
If you have Belith and/or Brienne Level them next……Belth first.
If you dont have the level Melendor.
If you have started “good” 3* heroes finish them first.
Then start finishing your 4*'s if you have the mats . If you dont do the good 3*'s until you have 2 3* rainbow teams.
After this finish ( Level to 3/60) the 4*'s you started with.
This should give you the possibility to do a lot more class quests and finish a lot more other quests and give you some fire power for war.
You already have some very good heros assembled but it will take time and patience to level them.
Only feed the same color. This means you have always 5 heros in training but in the long run ( and that is what E&P is about ) it will be 20% more efficient and faster.
Wish you best of luck.