Fine, I will tell you how it works.
1-Every game you lose is 100% your fault, never blame your teamates, only blame yourself, this promotes a mind set where you accept your wrongs and learn from them
2-Play to learn not to win, If you play to win you will get mad when you lose, if you play to learn, you will improve which will increase your win rate for you are becoming better as a player.
3-Git Gud, this sounds rather cruel but fact is, if your a Legit Silver, you are better then a Legit Bronze, if you are a Legit Gold you are better then a Legit Silever, etc etc. if you find yourself at a 50 50 win loss ratio then that means you are exactly where you belong, you have yet to grow into the learning curve to advance to the next elo.
How does one GIT GUD
Pick something you want to get good at
Focus on it every game
Seriously I cant count how many bad bronzies i met who have gone "i have gold mechanics i simply just dont try hard" and in reality they simply flat out suck. This is why points 1 2 and 3 are super important. This goes into the old phrase
"one must empty their glass and admit they know nothing" in order to grow, and dont give me that "oh I can ______" for fact is you havent if your still stuck in low elo.
anyways the TRUE secret to climbing out of low elo is simply flat out admitting you suck and badly need to practice. Climbing elo is a very humbling experience if your a serious player for it quite literally admitting you are bad so you can learn more.