I’m not sure what double-taking means, but there’s quite a lot of good information and experience on the forum about Tresiba. Here are some discussions to start, you can also search the forum.
https://forum.tudiabetes.org/t/switching-from-lantus-to-levemir2
https://forum.tudiabetes.org/t/tresiba-basal-insulin1
https://forum.tudiabetes.org/t/levemir-split-or-a-single-dose1
https://forum.tudiabetes.org/t/insulin-degludec-tresiba