There really isn't a grind in the game. If you're seeing the same event playing over and over then that's the end of content for that event or you need to do another event to unlock more content. You can use the quest tracker on your phone in the game to see what quests are available. Clicking on ??? under the quest will give you a hint on what to do.Has this game improved in the last 3 years? I think that's when I gave up on it, was waaaayyy too grindy for me.
There's also a walkthrough in the OP of this thread if you want to make it super simple.
If you want to remove money or stats from slowing you down, the phone also has a built in cheat menu to let you skip that part of the game.