I second the suggestion of crimps. They have wire crimp options of all sorts. Takes just seconds and then place your heat shrink over it just like you did. A lot more secure than super glue. Not very expensive at all. Don't need more than a pair of pliers in most cases.
Zip ties would work well to secure the loops also, and even cheaper.
If you've not ever used crimps instead of glue try it
I second the suggestion of crimps. They have wire crimp options of all sorts. Takes just seconds and then place your heat shrink over it just like you did. A lot more secure than super glue. Not very expensive at all. Don't need more than a pair of pliers in most cases.