Noob please help improve this build

Hi everyone,

Fairly new to the game and have gotten to T10+ maps. I haven’t quite hit the limit but getting close. At this point I’m not sure how to improve the character. I don’t have a ton of money - about 3 divines, 130 chaos. So 2 questions: What items should I prioritize to improve equipment, and how should I change my passive tree? I’d be happy if I can get to the T16 maps even if I get stuck there (I understand I may have to get a lot more currency to get the equipment I need.

Please keep in mind that I just changed out the Cobra Lash support gems based on research, so they aren’t all level 20 yet. Any feedback outside of that would be very welcome.

Thanks in advance!