Is this an ARPG or a soulsgame?

There are skills you can develop that will keep you from dying very much, or even at all, through much of the campaign. You also need to select the appropriate gear to protect yourself.

You can't just run into mobs willy-nilly and expect not to get killed a lot.

You should look up a build that you can copy, which will show you the passive skills to select, the skill gems to use, and the gear to select.

If you're not interested in doing those things then no, the game is probably not for you.

If you are wearing up to date gear it is not normal. Act bosses are tough and you actually have to do mechanics but trash mobs are no problem if you don't stand in their face for a while.

Life and resistances are the most important stat on gear. Rare gear without those stats are worse than magic gear with life and resistances.

It's a soulslike arpg, its harder at the beginning than at the end fortunately!

Around the middle of act 3 you get a major power spike and it will start feeling better

Focus on dodging, most enemies have easy to see attacks, especially bosses!

After you defeated the king in the mist after the graveyard youll get a spirit gem, those depending on your build might give a huge qol