Yes, your main was about 700 elo 2 months before and suddenly you're playing at 1900.
GG, almost 900 games, you bought the acc at 1900+ and you fall back to 1800. I managed the 1830 with less than 80 games and I have diamond on my main. You won a 4v5 game that you don't even make a teamfight or something usefull, you had 25 cs at 10 minutes and you suck. Everyone knows it and you show it by yourself posting a photo from a victory in a 4v5 game, trash.