I am also diagnosed with ADHD. I can't change my brain chemistry so I've come to the conclusion that if dopamine driven activities is what keeps me going then so be it. Instead of fighting it, I welcome it. ymmv.
All these suggestions about different or better planning programs or habit forming things etc…. They have an efficacy that last six weeks, then wears off, and they themselves become another shameful burden.
And yes methylphenidate helps.