Connectivity and Bandwidth

When will T-Mobile be honest and up front about our service? Yesterday afternoon I had over 100mbps home internet download speed. Today 32mbps. Why? Or why are we constantly bothered with resetting the modem because we loose connection? Shouldn't it just establish a new connection the instant it looses connection? And why aren't all towers 5G when they sell us a 5G device and know where we live? But here's the big one. I call looking for help and I get a customer service rep tell me "I can get you a booster for your home internet" and he transfers me and the tech laughs about customer service telling me there is a booster for my home internet. Still laughing he says no there is no internet booster. Really!? So many people say how great T-Mobile is. I guess the phrase "Your experience may vary" is quite true with T-Mobile. Sadly Centurylink is even worse and only offers 3mbps download and 1/2mbps upload. I guess I need to move to get good internet. And yes this is more of a rant than a question but if anyone can help me(Yes I can handle the truth.) I would be grateful.