For me, the rituals come partially from the recommended steps in the particular in-app Journey I'm on, sure. But I also read self help books, try to follow empowering social media accounts, and am in therapy and actively have habits I'm trying to fix or build in. I try not to go overboard and fix everything at once, but grow steadily with my habits and changing my mindset. Some habits from a particular journey I delete from my checklist because they're so ingrained or unnecessary to do anymore.
I think a big part of it is being forgiving and constantly re-evaluating how things are going. It can be tempting for me to ignore stuff when I start missing goals, but constantly checking in with apps or calendars or a professional has been good for building up focus and rearranging goals/rituals necessary.
Over the years, my lifestyle has changed dramatically too. re-evaluating has been absolutely necessary for moving around my habits as my scheduling and lifestyle kinda needs change. I meditate on the bus home instead of before work now that I work earlier shifts. Things like that.