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I can lose 10, even 15 games in a row on here, this never happens on lichess, so you can only come to one conclusion, chess.com have it rigged somehow. There is no other explanation for your elo being driven down to such extremes and then you are allowed to bounce back up with weak opposition. If this was normal, you would expect to experience the same on lichess, but I don't.
If you lose, why do you keep playing? You're only losing 15 games in a row because you won't take a break.
always 50 winrate