Okay so utility points how do I unlock all 24 of them no one explains trying to do a build for my sith sorcerer but cant find this answer

You can't use them all. You only get 9 points when you get to 75

The purpose of utilities is that you pick and choose. You max out your points at level 75, and you then choose utilities to modify your gameplay. This is similar to a talent system in other games -- you can't have all of them.

Extended answer; as you level up and advance along your discipline's progression path, every so often you'll unlock an ability slot, there are, as already stated, only nine of these. About every third slot, you unlock a new tier of possible abilities to chose from in filling the slots (you are not, however, required to fill a slot from the highest open tier, you can if you so choose use only abilities from the first tier, for example)

 

Each ability, regardless of Tier, provides certain bonuses to one or several actions and which ones you choose allow you to tailor your character better to your chosen style of play. Take, for example, a Vanguard Trooper; they have the Harpoon skill, then they can select abilities that increase its range, allow it to do additional damage and even stun enemies. To prevent Uber-God-Build characters, however, the ability slots are limited, so you have to decide what abilities and skills you want your character to focus on and which you feel won't help and can be set aside. Making a Sith Sorceror with a focus on healing, for example, you can select the abilities that boost healing skills, but at the cost of not being able to chose ones that boost attack skills like Lightning Storm.