Mage/Dark Wizard Looking for mid game riftwalker help

I'm currently level 63 and struggling to clear content without dying super easily, and also cannot do a great enough quantity of damage to safely farm experience, what could I use as a build to do so? I'm currently using the ghostly set and the solar pillar wand. I don't know what I'm doing for stats, ability tree or even making a decent build to play somewhat comfortably

 

I wouldn't be too stressed about getting an optimal build while you're still in the midgame; you'll outlevel it too fast for it to be worth stressing out over, and the content is generally not difficult enough to necessitate a super meta build.

That being said, I love building in the 50-70 range, because it's the point where content starts getting more difficult and the building variety gets a lot more interesting; this is the first point where you can really get a build online. I'm not necessarily saying to go with this exact built, but here's an example of something that it at least fairly usable for your level. It definitely is skewed far more towards tankiness than damage, and can definitely be improved all-around, but it's an idea you can start with. I'd use what you can reasonably get, and then make improvisations where needed (or improvements). That's kind of why I really love building in the 50-70 range; there's a lot of good items that people just don't really appreciate that can work really well, but without the need to really min-max. Maybe check out WynnAtlas and see if there's anything around your level you think is worth the effort of obtaining to slot in.