Avoiding Temporary Provisioning Profile

I'm an aspiring developer and have built my first app.
Works fine in Xcode and on my iPhone. I'm quite happy with it.

However after 6 days, the app stops working and needs to be rebuilt from Xcode.

I understand that this comes from the provisioning profile being managed by Xcode and being temporary.

Sofar I have not enlisted in Apple Developer program. This may be a workaround, but I find it quite abusive to be forced to pay 100€ per year to use my own app on my own device .

Now, how can I have a permanent profile for my app on my own iPhone so that I could use it without having to rebuild it from Xcode every 6 days ?

Thanks
Quite disappointed by the lack of visibility on this forum.
I understand that Apple imposes a temporary profile for development purposes when they "manage the profile" , however can anyone confirm it is not possible to manage it myself so that my iPhone recognizes I am a legitimate author of my application ?
Avoiding Temporary Provisioning Profile
 
 
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