All of us here are playing under the same conditions you are, and manage perfectly well without resorting to wishing for changes to the game, except where the game is obviously wrong.
There are many different ways of managing teams to cope with the fixtures they have to play, you just have to find the best one(s) for your team. The game won't change to suit you, you have to work within the game parameters.
Get in-game friends who can send you green packs; look for videos to watch, etc, that will give you a reward (tokens, packs) for doing so. You can then use those tokens and packs to restore the condition of your players before their next match. There are lots of ways you can get your team ready for a match, you have to work to understand them and use them.