Matchmaking really need some changes

I have two accounts one is celestial II and one celestial III from this morning I got on a massive 8 lose streak on the cele III and now I'm back to gm2 meanwhile on my "main" I'm on a 6/7 win streak and almost got to celestial I. Somebody would say matchmaking is ABSOLUTELY RIGGED and honestly this time I have to agree. To add some contest I play solo queue in both account so I'm not a boosted player infact I'm usually the carry and in those 8 lose I got svp every single time.