My plan: CTB by hanging. Advice on hanging implement needed

[AngelLust]

Hey gang, I've been lurking for a while. I'm thinking my best shot of CTB is by hanging. I have two prospective anchor points. A wooden circular bar in my closet that I could try (I am afraid it might break under my weight as it is flexing under the weight of my clothes and I weigh 250 pounds yes I'm fat.) I also have a standing pull up bar in the garage that's surrounded by random garbage that the family has accumulated over the years. I can probably hang myself from there if I secretly clean the place up a bit.

My big problem is that I haven't got anything to hang myself with. I'm disabled with no income so I can't buy a rope and if I asked to buy a rope my family would immediately be suspicious. I was going to try hanging myself with a robe tie but when I tested it with my hand it was tearing under my weight as I pulled. Wouldn't have supported me. I have two different thicker robe ties to try but I also have a macbook pro charging cable that is fairly long and I might try that too.

I've used the hanging resource and the farewell wiki guide to hanging to figure out knots. I hope I can tie them right, I'm no boy scout. What do you think of me using the charging cable?

Anyone got a better idea for something to hang myself with?

Thank you for reading!