I am trying qlango right now. Look nice (and it is free also :))
I think going good. Mostly listening podcast in other language and repeating them to get use to the language. I am planing to learn all Latin language (from Spanish to Romanian). Let's see how good I will be as a polyglot in one year. Don't really plan to learn latin, or maybe just for the fun who knows.
Thanks for everything. I started all the degoogling but damn, it will take times, but it is worth it. The email tips is nice. I should start doing this, I would like if possible to be the one that host my emails. Also, there is a website: https://european-alternatives.eu/ which can help regarding changing to European services instead of USA ones. However, not all of them are open sources. Regarding Signal there is also messaging app that use XMPP protocol that are worth considering (https://xmpp.org/).
The most private thing for messenger app are the messenger applications using the XMPP protocol.