Look how rubbish I was the season before. Look where I am now. Short term projection things change RAPIDLY in this game. It's all about long term planning.
Sounds to me like you were too comfy at the top.
Now when knocked off the perch, you are throwing toys out the pram.
a La Vettel / Horner / Red Bull.
Yes there are bugs. Yes it is partly luck at the minute.
But we are all in the same boat, and we are all adapting to the new changes and rules. We are all doing things and learning.
There will be winners and there will be losers. You were the winner before, gloating how easy it was.
Well hello, welcome to our world and the seasons we couldn't get better. That's what makes the game dynamic. The system before when you found it so easy must surely have been more boring and er... predictable?
Next year the tables will turn again. Nothing stays the same for too long!
Hang in there. Or if it isn't the game for you, all the best.