@cruzhjo69 As a 3x year old with ADHD, I found myself here because I'm on the same journey.
I REALLY TRULY SUCK at establishing any new habits unless there's some kind of negative reinforcement relationship to not doing the thing.
What I've found that works for me the best (so far) is co-commitment, like paying for gym classes right after work (financial investment + community expectation + no obstacles between work and gym to be distracted with).
On my own, committing to consistency. Eg, doing one thing every day, even if it's something small like walking to the shops instead of driving.
The biggest personal motivator, by far, has been observing and understanding the chemical changes in my brain. That's the instant gratification; setting up a timer and doing a 15 min tabata smash session and feeling endorphins rushing right afterwards. Stretching on the ground and enjoying the elation in that moment. Feeling connected to the ground, the sweat and sun and dirt. And for the rest of the day, how much better my mood is. How grateful my body and mind feels.
The internal motivations are by far, the most powerful if you can engage with them long term.
Also, I love apps. Less energy spent on deciding what to do, the better