Don't feel bad about reloading to figure out how you want the story to go. BG3 is one of the best story generators in the genre and a lot of the dialogue options have unclear implications (e.g. just-friends dialogue options with gale accidentally leading to romance is one of the fixes in this patch). The point is for you to be able to build the story you want through your actions while still having consequences for those choices, not to pigeonhole you into making the "right" choices.

This is how I started BG3 as well. I ran through the beginning “map area” as a Druid support and it was NOT the right call for a first-time Baldurs Gate player(or at least me). Once I got through the first “map” area, I restarted the game. I chose a more damage friendly class(rogue) and pretty much steamrolled after that. Now that I know that game enough, restarting helped me see some hidden areas I missed or things I just walked passed because of not knowing. 100% would recommend this. I think I was 15 or so hours in. But I quickly got back to my same progress maybe 12 hours in.

I ran into that problem.multiple times on tactician now, I believe it's because I usually don't kill all imps in the last nautiloid fight and don't level up. On level 2 that fight feels very reaonable. Anyways, you should always sneak up on the sleeping ones to wuickly get rid of one and then it's 2v1 until the devourer from the back shows up.