How did you find adjusting from range to melee in raids?

So been playing since Vanilla and while I have always played a lot of toons I really only ever raided with range due to it being easier for me to see mechanics coming. Now I am needing a change and moving to melee and noticing in raids and dungeons problems seeing mechanics and moving in time. a lot of it also has to do with everything in the area of the fight looks like things to step out of even if its something from a player and not the npc and even if DBM doesnt tell me to move.

Has anyone else had this issue and how did you adjust?

memorize patterns, using timers, and having camera zoomed as far as it can go.

I normally tank (can’t see much at times) and rely on my timers and bars. When I dps screen is less compressed, but again, memorize patterns and use timers.