What to do to improve?

Hello I've been playing regularly for a week now (First pic is how far i am) So I've using a human warrior build with some parts i managed to get Is there's like anything i can do to improve the build? Or is there any meta builds i can use? I've been struggling with the "battlefield" and the Rose icons in dungeon rooms During dungeons i upgrade mostly strength and hp And is it all the content? Haven't been getting new dungeons/ icons on the map Thank you and sorry for the long post