Myth is that you have to train for a specific training program for 3 months and then change it. I think it’s the other way around, listen to your body, do whatever exercises you are doing in a workout, of course, consistent with the muscle group you are training on that day.
If you have no experience with different types of exercises and techniques, it is good to ask for an experienced coach who will nevertheless prepare you an individual program for your physical level and capabilities. The most important thing, however, is to listen to your body and do exactly what it wants, and at the end of your workout to get out of your comfort zone and do something new and hard for yourself. That way, you get the most muscular strain, every workout is different and interesting, the effect is much bigger if you compare it to the repetitive workout. The only thing to repeat in a certain order is when you are doing certain muscle groups to leave at least two days to recover the trained muscle group and continue with another. It is good to have a workout done so that at least once a week you can work out your whole body, each muscle group.
Sports does not create habits, but characters! As strong as you are mentally, the more it will affect your physique and you will develop because you will make increasingly difficult, intensive workouts. The more you progress, the more diversity you will need to feel the workload of the workouts.