You are bad and you deserve the SR you got. The MMR is not wrong. Matchmaking makes no errors. Believe in Blizzard and peace will befall your soul.
That was for the trolls you’ve opened yourself up to. They’re probably crying tears of happiness now and can’t read this, so the truth is many people experience what you are experiencing. It doesn’t mean you’re bad, for one thing, Gold is average, not bad. The fact is you’re on what many of us call a “forced loss”, because you probably did something poorly while playing your character and the algorithm that determines your hidden MMR has put you on a track to match it. It will be a painful ride, but when you’re done, I guarantee, like many of us, you’ll question why you went on the ride in the first place.
My suggestion is that if this is bothering you, then this game is not for you, competitive is completely constructed by a hidden algorithm, in all honesty this is the computer’s representation of your skill, not your own performance. Go play another game because it only gets worse from here.