What's the Best Way to Set Up an Android Proxy for Secure Browsing? or How Do I Use an Android Proxy

Bro, same! My android proxy kept dropping until I realized my phone’s battery saver was killing the connection.

Go to Settings > Battery > turn off adaptive battery or add your proxy app to "unrestricted" mode.

Also, some proxies just suck on mobile data. Try sticking to WiFi if possible.