The windows are there to dps of course and most of the time good healers will cast dps spells then having to heal the party. In order to do this you have to use everything and know what skills can do. For example, you can use Collective Unconscious, another hot + TD on the tank, then use lightspeed (mostly for mana reasons) before using Opposition to extend every buff. Even in big pulls, if the tanks is decent you can dps a lot with this strategy without having to thinking about the tank. Throw in an instant heal or place an earthly later on, if needed and you are good to go.i'd recommend reducing your dmg, if you are new to a fight and try to learn it before going all out and even start keeping people at low health to push yourself further. Especially in ex or savage fights, since normal mode usually can't kill people if they don't make (a lot) mistakes. Therefore i wouldn't really call it an excuse, if you are new to a fight better be save then sorry. You can push yourself early enough. Also i wouldn't expect people watching an guide fo dungeons like sastasha. Of course you should read your tooltips, ask questions and read/watch guides for ex or savage fights, usually. With that said, i prefer going into those fights with friends/static and try them blind and learning the mechanics ourself. Well, some don't even know about them and most of the time you don't have these kind of options in an console game. I don't blame them and this reminds me that i have to use one of the Q&A in the future to ask yoshi, if they ever will consider making an not skippable 5 min video to explain that these options exist. That said, if you use those option, then there shouldn't be any issue. If you are playing on ps4 and can't play with gamepad, you can youse mouse+keyboard aswell, anyway.Before we get into 'not everyone knows that about every fight' that is an excuse I don't accept because we are all playing on internet enabled computers and PS4s where YouTube is easily accessible.