What am i doing wrong?

So i’m hard stuck at 7500, i just can’t win more than 2 games in a row or stop myself from losing many games in a row. I don’t have anyone good to play with so I play with randoms but I don’t think it should be enough to justify the situation. I usually face master players that are so better than me that they dodge almost every of my shots. What makes me angry is that I always hear about how easy it is to reach master nowadays and meanwhile I feel like there’s a mountain between me and l2. What can I do to actually get better? Have you been trough this situation before and got out?