If you spent as much effort as you do crying and writing out paragraphs of complaints into using applied knowledge from previous content and adaptive understanding you would see that Dawntrail content is simply a babystep forward in terms of "Difficulty".

For example: everyone knows what a directional arena attack looks like. Don't stand in front of the directional arrow that says HEY IM GONNA BLAST HERE. Seen it plenty of times in previous content.

In Dawntrail: So you remember that directional arena attack? Ok so we're gonna freeze 2 of them so that it delays that one. It doesn't take rocket science to understand the non-frozen ones go 1st.

This is a classic case of "Git Gud". All of the mechanics get spoonfed to you on Youtube anyway if you don't wanna prog blind.