There are three types of powers in this universe and those are domains,authorities and control
Control is the most common and allows you to control one aspect of the universe which is given to you like able to control water but you can't choose the thing to control its given from birth which thing you can control and it has limitation that's depends on the user
Domain is the most rare and it just creates domains whose area covered by the domain is dpendent on the user and in this domain you can manipulate,create one thing or manipulate and control an aspect in the domain like a reality domain i which you can create your own reality manipulate it to your will (it's kinda broken) and yes you can change the molecular structure of the domains main aspect like can change water into just oxygen if the domain is a water domain
Now authority it's 2nd rarest and it's just a ability like apply force,create fire water air blah blah and soo tjai is the end of the basics now to the other things
Note:- in control you cannot change the molecular structure of and the more powerful the ability like able to control time the more rare it is
Now onto the advanced stuff like the true names of your ability
So a ability is tied with its users conscious and his soul and when you try to reach your inner consciousness by meditation near death situation despair or somthing else you can meet with your abilities conscious as it has one too and if you pass the trail it puts you through your able to learn the true name of your power which makes you very very powerful like 30x more powerful and let's you use your power to the fullest and do things you couldn't do before like control every single drop of water on the palnet if you have your true name and have trained yourslef a lot and yes still need to increase your stats and mostly imagination and get ready for the strain as it leaves a lot of starin when using it for the first time but later your body will be better at handling the strain of the power and it does have a time limit and a cooldown which dpends on endurance,stamina and stronger body the better these three stats the more the time limit and lesser the cooldown
For you to able to activate your abilitie's true name you need to shout it out and in some cases when you awaken your abilitie's true name your gonna have some changes like different eye colour or something else so this is it but if you fail at the trial you die but sometimes you live and gat to give it another try later
So this is ut for now next time explain the world building and some other things