Oh ok sorry for the stupid questions.

Alright thanks for helping guys really appreciate it.
They are not stupid. Please ask anything you want we'd be glad to help.
Just want to make sure you understand that most perks depend on your natural skill level. You can still cast them if fortified, but it's your natural level that counts.
So if you have a 20 point fortification and your unfortified level is 74, then it will show green and as 94 but you can still cannot cast expert level spells. However if you raise your unfortified level to 75 it will show as 95 fortified and you can cast expert level spells, even when fortified. And you can increase the natural (unfortified) skill level if your skill is fortified.
Finally, except for acrobatics and athletics, skill fortifications above 100 have no effect. So as an example, there's no point in fortifying destruction to 120, that does the same thing as 100. However attributes (Strength, Willpower, Intelligence, etc) do have benefits if fortified above 100.