Habits are behaviours we repeat consistently. There are good and bad habits, though generally the bad ones only exist because of the absence of a good one. Habits are a powerful way to hijack motivation, by creating a strong urge to do something you otherwise might not want to.
Lifestyle habits are the basic, consistent habits in a day, like getting sunlight when you wake up, avoiding games until a certain time, tidying your room, etc. These will never really change much - you’ll be doing the exact same things in your dream life. Having these habits will leave you with more time and energy for everything else, and they can also help lower your baseline dopamine, making simple activities much more engaging.
When building lifestyle habits, it’s important to make them attractive. This can be difficult - no one really wants to get out of a warm bed - but you can make the alternative less attractive to encourage action, such as putting a alarm on the other side of the room delayed by 10 minutes.
Activity habits are the repeated efforts put into something to improve consistently at it. These form the basis of picking up new hobbies, doing effective work, and generally improving at various skills.
Both lifestyle and activity habits are difficult to build if everything is being managed inside your head. It is much easier to externalise this by creating systems.
Making activity habits attractive is a more interesting topic, as you can do so by building enjoyment and interest in the activity. When combined with making them satisfying, they are much more likely to stick.