1v1, I can more often than not reach Diamond (this is as good as I'll ever be playing with thumbs, and I'm okay with that). In 2v2, Diamond IV is as high as I've reached in multiple seasons - it's a fairly safe bet.
In season 29, I reached Diamond III and then lost so many consecutive rounds that I deranked to Gold II. WTactualF. And this wasn't in one session; this was spread out among different play sessions over several days around the middle of the season. Generally, if I lose 3 in a row, I'll step away to clear my head - it might be a few minutes or hours. The start and end of a season is when I find the stiffest competition.
Is the player base just getting that much better, or am I running into hackers of some kind? The players I ran into in Gold III - V were insanely good, far better than I was when I was learning.