That’s the saddest thing I’ve heard today 
I lost 18 in a row a few months ago. Reached legend since. It happens, losing isn’t fun but it’s not the fault of the devs. Just take a break.
It doesn’t take a lot of common sense to realize that many factors can attribute to auto wins and auto losses using the term auto loosely to imply the user isn’t making huge mistakes and plays half decent controlling the board and/or going face when they should. That is also a factor of its own as is playing a big minion or using a couple lower cost cards and so on.
All that being said, there is a huge difference between running a deck that is well balanced, mulligan correctly, and play half decent, and someone attempting to “edit decks” to adjust because it didn’t work in one game. I used to do this all the time and sometimes it helps and sometimes it destroys the deck. I usually c/p before the edit so I have different versions and I can go back to the last one if I ruin it by editing, and narrow it down to the most consistent version, but still this is basically saying you’re using a home brew deck vs top decks and yes you will consistently lose because you mana/draw curves aren’t perfect, your balance between control tools and other cards will likely be off one way or the other and your win condition won’t be perfect and likely be based loosely on either going face, tempo, or control, all of which there’s likely better “” versions of you can look up online.
Although it is fun and the real basis of TCG’s to build custom decks and edit as you go, it isn’t ideal for win rates. And you can’t truly test it without playing ranked because you may win a ton in player matches but your opponents aren’t up to par or you may lose a ton to random decks that have an advantage against your style and use unorthodox techniques that you wouldn’t see in ranked so your editing / deck building will end up geared toward random things you won’t see in ranked and when you decide to switch over and try it, you’ll run in to something completely different.
I feel the general frustration with it. Back to the original point you can have a very good deck that has a 55%+ win rate overall and just get bad match ups, poor early game draws, bad match ups, etc. Who goes first vs who gets the coin can favor one over the other depending on the decks and draws.
There’s so many factors to winning and losing that aren’t related to your decision making or deck choice that it doesn’t feel pointless sometimes. I tend to play 1-2 games, take a break and come back to it later. I can’t sit and play 4+ games let alone play non stop for hours like some do.
actually, it is, they can reduce the rng but they just won’t
Actually I decided to make losing fun…
I made a warlock deck and the goal is to see how quickly I can get me to lethal.
I had 13 losses and 1 win last nite… I was so mad when the warrior I was fighting against saw he had lethal on turn 5 and conceded… ruined a perfectly good losing streak…
I was also drinking fairly heavily last night…good times!

EDIT: the Mecha-Jaraxxus emotes add to the fun!! ERROR!! ERROR!! WELL PLAYED!!
Turn 4 seems to work really really great in the 10 games I faced Highlander decks recently.
Last one vs Mage
I drop Albatross on 4
They play Zephyrs and play sap.
I play Albatross a turn after its better for the curve and wasted mana.
They draw extra cards twice for 4 cards. Nice to have both those spells in under 10. Yep, one was an albatross now there is no duplicates in his deck again.
Now he plays Reno on cue (mid game) nice!
The game came down to me equipping a Weapon with a Board Pillager where I had a 66% chance to equip one with enough attack to win. Nope, got the 1/3 I had to play early in the game.
Of course this player that they were all that and a bag of chips after the game who bone so they sent a friend request. I will keep in my inbox to wish em a happy mothers day than block em.
The game is set so that you really cant afford to misplay or lose a turn. So Zephyrs on 4 vs what your facing can be really great.
Just like always seeing turn 6 Reno or a Turn 7 Siamet or a Turn 9 Queen Alexstraza - funny how those cards are always there.
Bye buy dude - have a nice day!
Win or lose the games just gone way down hill. And you will lose repetitively if you try to play any remotely fun deck.