Silver 5 - What do I do against zed? (and a few other midlaners)

No matter what champion I play, whenever I'm faced with Ahri, Zed or Fizz, I just lose lane. Simple as that, I can't recall a single game where I've won a lane against a zed or a fizz where they didn't go afk. Ahri is a bit less of a problem but I still rarely win lane vs her. (Keep in mind I don't want to win lane I want to at least go even which I can't ever do)

I have tried playing xerath, azir, diana, karthus, kayle, zilean, Leblanc and chogath mid and the same thing happens every time. They just have too much burst potential which I cannot seem to counter.

Ahri - I can be dodging her stun the entire laning phase and then make one mistake and get hit by a guaranteed kill combo that can kill me 100 to 0 under tower. Meanwhile no matter what I do to her she always has her ult to disengage whenever needed. I can kind of try to farm under tower against her, but I can never seem to properly win lane against her. If I sit under tower she roams and I spam MIA pings but its silver so my team ignores it and pushes their lane and dies. Either way she gets fed and becomes a really powerful lategame champion. I try to build MR against her like abyssal scepter but she always just seems to overpower it with damage. It seems better to just build damage and stay out of her range since I die guaranteed either way if I get stunned.

Zed - His clone and blade combo do too much damage to me, no matter how much I try to dodge I eventually get hit and lose up to 75% of my HP from just that combo. With his ult invulnerability + damage and TP to clone ability he can dive me under tower even if I'm somehow ahead and get out without taking any damage. I build zhonyas and tabi against him and try to play as safe as possible, but because of his mobility and instakill potential he's so hard to punish. I stay under tower - he CSs for free while denying my cs with his insane bursty poke and eventually dives me under tower. I try to fight him he just dashes away or just straight up 100-0s me with a couple AA and basic abilities.

Fizz - Possibly the worst offender. He has bleed, high aoe damage nuke + mobility + over walls jump + invulnerability/dodge anything ability, ANOTHER dash ability and on top of it a lock on high damage slowing AOE NUKE ult. I'm not really sure what I can do here. I try to play safe, but he uses his stupid dash pole combo to jump on me and it usually just kills me with just that. I can usually dodge his ult, but of course my teammates can't. Anytime I;m under tower he can do pretty much the same thing except use the jump to get out.

Unfortunately I can't ban all of these champions. So what should I do against them? Building MR or armor items seems worthless as unless I build frozen heart + thornmail, or GA + spirit visage they don't do anything against the champion and by the time I can afford those I'm usually already dead.

Any advice is appreciated as currently I feel like alt F4ing every game I'm facing one of these champions.