It's hard. It takes a lot of self-awareness in order to recognize you are approaching your break point.
I don't know anything about your history, so what I'm going to relay may not be applicable to your situation at all.
I never in my wildest dreams would have thought I'd have a child that would tell me "no" or who wasn't able to follow directions. Nothing in my life had prepared me for raising a difficult child.
My traditional parenting skills are good. Problem was that my son did not respond to traditional parenting skills. I learned that first I had to change my behavior and attitude before I could change his.
It takes a lot of time and patience to deal with our kids. Patience was not something I had a lot of to begin with. I had to really, really work at it. lol And I'm still a work in progress. lol
Really coming to understand difficult child's ADHD helped me a lot. Not the surface stuff such as a list of symptoms -- the stuff you have to dig deep to find most of the time. Example: ADHD kids chronological age doesn't mean a whole lot. The 2/3rds rule applies (child acts 2/3rds their age).
Other things I learned:
Do not give directions such as "go clean your room." Break it down. Put your toys up. After that's done, then direct difficult child to "carry dirty clothes to the laundry room," then direct, etc.
Create a hand signal that means "stop doing that" and use it consistently.
Be consistent.
Pick your battles wisely.
difficult child's life must be structured.
Give him lead time so that he can adjust to transitions. (Ex: Bedtime in 15 min, bedtime in 10 min, bedtime in 5 min)
Don't sweat the small stuff.
Take time for yourself.
Talk is worthless for young children with-disabilities, but can help parents retain sanity.
Couple of good ADHD links for you:
https://web.archive.org/web/2006123...ng.org/pdfs/2200_7-barktran.pdf?date=11-14-00
ADHD and Executive Dysfunction:
https://web.archive.org/web/20010712011057/http://www.pediatricneurology.com/newpage11.htm
Hugs. I remember well when difficult child was this age. Every day was a battle. The first battle of the day was getting shoes on little feet. Socks had to be "just right." It could take 30 min. Sigh.....
Turned out it was the ADHD at all but Sensory Integration Disorder. Sigh again.....
Hang in. It will get better.