itch.io

I'm not too familiar with how phone file explorers work, so this is mostly a guess. Using a file explorer, you should be able to transfer save files into the downloaded update .apk file.

In short, you have to download the newest update. Download the zip file, extract it. Then copy all the new files into your original game folder. When it asks you to overwrite/replace old files, say yes. I find that the easiest way to transfer saves between versions.

*If your computer doesn't ask you to overwrite files, you did something wrong.

I find combat to be easiest as the warrior class in the non-story mode. This is your simplest "hit things with a stick" type of character/combat. As before mentioned, I recommend investing perk points in perception when available. Aside that, I like to get the uppercut skill as soon as possible. More often than not, the key to surviving enemies is blocking; I find it useful to be able to swap directly into an aggressive stance and press the advantage for attack. 

Also as mentioned, I like to focus on achievements. More achievements mean more bonus points when making a new character, which in turn means you successfully* can get further on the map and take down more advanced enemies.

It should also be noted that there isn't really a "one size fits all" build. Most enemies are at least partially weak to physical attacks. But almost all of them require a different approach, some even needing a different form of damage to cause any effect. (I.e. some enemies are immune to physical damage)

*Depending on your definition of success, or alternatively, "taking down"