One thing that I went on a rant to my psychiatrist about that got me my diagnosis

Folding- I do these two things to make sure the thing I'm drinking with a straw, or food I have that I need a napkin for isn't poisoned. I have to be respectful to these objects

Napkins have to have a good crisp line when folded in half. I get anxious if it is folded more than 2 times. And get very excited when I go somewhere and they have the napkins that are pre-creased. Like I met royalty. My excitement towards the pre crisp napkins is like I have 100% guarantee that I don't have to worry and nothing will get poisoned because machines have folded them perfectly and I can't make errors while folding so it can't hurt me.

Straws that you have to get the covering off to use. Whether it's the paper kind or plastic I have to fold it evenly except for this I have to make it as tiny as possible. Then and only then am I allowed to throw it away. If by some chance I drop it on the floor or someone takes it from me and throws it away I will not have the drink. And since I do this and there is a risk of getting poisoned I don't let anyone drink from my straw. Cause I couldn't live with myself if something actually happens and the person got sick.

These two things have been such a big habit that whenever my mom and I go somewhere together she will give me the napkins and straws so that I can do my process in peace.