some champs are too broken (or maybe its me)

First i have darius : his health and armor are too high making him a tank and his heal is too much because it heals what we worked too hard to take down by just a little press on Q and his damage is too high and the displacement is too long and mostly his ult... i cant understand how making him do full stacks on someone after a killing ult and his ult refreshes when used to kill be balanced to you... like how did you think that is balanced like seriously? please lower his heal or damage any will work or just do your thing.

second i have yasuo : i cant belive he doesnt have mana/energy and he has 0 cooldowns like how! i know he is squishy but his shield on passive is too strong in late game and his Qs deal crap load of dmg with cooldowns based on attackspeed. so basically when you get attack speed you get cdr like how is this balance to you? and why does that crappy wall remain there for very long and it blocks all projectiles (even ults) thats so broken you cant just give him an abbility that blocks almost anything that is not melee and make it last for around 4 secs? it should remain for a max of 1 seconds to be fair... and his E... i just cant talk much about it but the ULT... the frkin ult... that cooldown is too low for a deadly ult like that it basically holds people in the air giving your team a chance to deal more safe damage and then he gets to deal damage when it ends... just do something about the cooldowns and the mana and mostly the shields (SAME FOR RIVEN BTW)