Crashes constantly

I was and am heavily addicted to this game for pure nostalgia. Niantic is lucky this game has Pokémon or it would had died in days. The game crashes when you open it, when you try to catch stuff, when you try to heal stuff, when you try to do a raid, when you try to leave a raid and any other action that doesnt include violently swearing at your phone. I hate that this is the game that Pokémon is involved in.

Goose2014 about Pokémon GO, v1.39.1