FIDE Rules are the WORST

I was playing at the King's Island Open Chess Tournament this weekend and I was playing horribly, long story short, I lost the first 4 rounds. When I was playing the fifth round, I had white and was winning by move 8 (I won a knight). After 10 or so moves, I'm trading rooks on c1, he takes, and I reach to play Rf1xc1, and I accidentally hit my king. I say adjust because what else do I say? The opponent calls touch move and we need to talk with one of the directors, admittedly, I don't give the best explanation. The TD is asking me to demonstrate on a pencil how I touched the king, I stupidly make it seem like it was even a bit unaccidental, and she rules in my opponent's favor no matter how much I tried to re-explain that it was a pure accident. She says I can appeal to the next level TD, and long story short, no matter how obvious it was by looking at the position that this touch move was in no way intentional, it still can't count as accidental because I explained it wrong initially. He discusses with my opponent and I individually, and he manages to talk the opponent down into agreeing to a draw, he tells me that I can appeal further to the chief TD, but he will most likely give the same ruling because this TD already has many credentials, so I basically have to take a draw or lose. Keep in mind that moving the king results in a back-rank mate. Ever since this happened yesterday, I've been feeling so horrible because it feels like I had all the power to explain it right, and even though there was no one to back up either of our claims- they couldn't take the position into account. This kind of event makes me never want to play chess ever again, at least not in a FIDE tournament. If these rules can be abused so much that it becomes something that isn't even chess, then Idk what the literal international chess federation is doing. Is there any way I can appeal this decision again? The tournament is over, but I honestly feel scared to play in future tournaments because snake opponents have all the power to abuse the system.