Hey OP,
Welcome to the game (not said ironically) and the forums!
I might be wrong, but suspect there’s going to be a bit of mix up going on.
When you say ‘Tutorial’ do you mean the actual tutorials, as in the ones you can do from the main menu and don’t have to enter the game for, or have you picked a mission within the main game? I’ve not had a play around in the PF district since the September update, so may have missed or forgotten something, but prior to that update there were certainly missions which were harmless ranked but which weren’t tutorial missions (and weren’t necessarily particularly suitable for a new starter).
Regardless, if you haven’t done them have a go at the Training section in the main menu. Do the basic combat one, have a stab at the advanced one (don’t worry if you can’t do it, word on the street is that most people struggle). Then have more of a go at the live game. When you’re familiar with the controls, and basic combat, then go back and have a go at the Challenge Scenarios.
Stick with it, the combat is one of the best parts of the game! It may seem challenging now, but it’s heavily dependent on developing your skill, knowledge and experience, and as you get better, you’ll continually be able to take on and beat bigger and harder challenges!
Good luck!