Excuse me if I'm telling you something you already know, I'm not the quickest learner, but I've started using the Betternet app on my Android phone to access free internet.
https://www.betternet.co/
It's been working fine. I can stream youtube, Netflix, ShowBox, CinemaBox, movies absolutely free without using up my precious 2Gb of monthly data, which I now reserve for the times I need a 4g connection, such as when I need to do a big download etc.
Previously, I was always hitting the 2Gb cap before the month had ended, leaving me with the option of upgrading my package, at great expense, or bolting on a top-up, also at great expense, most of which was wasted when my plan reset every month. There's also an option with Betternet to pay a small fee monthly or yearly which gets rid of the ads (which aren't intrusive) and promises even better service, so I'm trying this out for a month or two to see what kind of service I get. So far, it's been wonderful.