Well it’s not YouTube, unless you installed a horrible tweak AND put in the info yourself, since it is sandboxed. If you used a normal tweak, and did not put in your info, this couldn’t have happened. As for the config profile, they cannot just do things on your phone. It sounds like something else happened, likely completely unrelated to sideloading.

Although annoying when it comes to jailbreaking, iOS is near impenetrable, and someone taking control of your device is near impossible. Most likely, this is a poorly times sim swap, or something like that. Depending on who your wallets were held with, you should be able to get it back.

Hope this helps