Luca9131
IMHO, I suggest setting aside 15-20 minutes to invest in yourself by reading a few things to get better familiar with the features, usage and frequently asked questions. This will also help with better understanding terminology and how things work.
Also recommend reading this guide called "Best user profile setup" along with "Android tips".
We have a lot of past threads in our communities forum that provide insightful knowledge and user experience regarding VPN service providers, etc. Please use the search feature to locate your answers.
FWIW, a lot of folks here either suggest iVPN, Mullvad, or ProtonVPN. So, there's a few more keywords for you to use as additional parameters to search for.