To make a sigil first start with a statement. Like " I am losing weight" make it something positive and definite. Then take out all repeating letters which in this case would be: i,i,g then you're left with : i am losng weht. Then remove all of your vowels which are: i a o and e. Then you are left with: m l s n w g h t. The make a symbol with all of the letters. Then after you've used all of them to make a sigil charge it with intent. These can be used for any purpose such as protection luck, or anything you need. Any questions mail me:)
Thanks for the defense enapay. This is the traditional way to create a sigil, im sure if you want to cross reference my methods with articles and videos on this site, and any books written on the subject.
Onto the the first comment about not needing sigils, no they are not necessary, but for some people like myself, we feel a bigger success when using sigils. Hope that answers you questions :)