You are not alone in this feeling. However, I would point out a couple things and suggest some other things, if I may.
This isnt that unusual to be honest. Given that everyone with a MMR rank above 6k get to share the same matchmaking pools, (which is truly broken imo) you can be paired with someone with ungodly high MMR I didnt think was possible like 15k MMR and with me, who hover between 6k and 6.1k. So given that the odds of the lobby you get put into can swing heavily one way or another or just be evenly spread in terms of MMRs it isnt surprising to not see top 4 once you are in the 6k+ MMR matchmaking pool. I get my 1st place match maybe once a week at best. top 4 maybe twice. and the normal is usually all the rest are 5th and lower. So there is a little rhyme to the reason and method to the seeming madness you are encountering. However you shouldnt see it as you sucking at the game. But instead, that the lobbies you are put into have a lot of folk that touch a lot less grass than you have. lol.
Also i find it helps to remind myself that when I started the BG Match that it is so on the nose blatant about it being a casino slot machine style game to play. And the Refresh button is the figurative lever to pull and hope you get all 7s (whatever that perfect next pick you want it to be) SO when I lose and never find what I was pulling the lever for all those times, that its just a casino game designed to have odds that favor the house. It may not be comforting in any regard, but it does ease that angst away by blaming a slot machine for the loss instead of anything I could have done different that never became an option ever.
That is super applaudable! For real kudos for that! I myself have just reached Silver 2. It has been a long and tedious climb but I am proud of my progress seeing how last month I only got to Bronze 5, and before that I hadnt gotten above bronze 10 for about 3 + years. Dont sell yourself short, you are incredibly good to be able to climb that high in the constructed game.
I know that frustration and that sudden wave of apathy to doing anything beyond that point. SO I mix it up when this happens. I will start my day in a standard match, hopefully get a win, but if not I then play a bg match to cleanse my pallete. Regardless of the game result there I then swap to duels. This is my most frustrating place as I often go 0-3 but on occasion I have gotten as high as 3 to 7 but only ever completed a 12 win run once. ever. Ive been playing duels well over a year now. and in ranked Duels most Ive ever won was 3 wins in a run. But once this circuit is done, unless I won my duels match, I will circle back to the regular hs match. This routine helps me from getting all angsty, depressed, keyboard smashingly angry, or super vulgar lol.
Not at all. But most of the forum commenters wont post anything seeing from that point of view normally. In fact a few will claim you are a troll for what you;ve posted in the first post of this thread as it goes completely against they experiences. I try to ignore them but they make it difficult sometimes. But no, you are not alone.