Earlier quoted context omitted.
You still haven't named a single tool or process.
A simple search on Google will yield plenty of results, if you are not willing to do that or even explain which solution you tried yourself and what failed, I'm not going to waste my time recommending an alternative solution to your problem either. In fact I just provided you with another solution which you didn't bother acknowledging.
I have used the built in backup to Google and noticed that restore takes many hours and a lot of apps lost data and settings. It took considerable effort to get back to normal. Definitely too much work to spend on my first day of vacation.
A burner phone may work but then you don't have access to all your data.