Build Help

I'm pretty new to poe, and I was wondering if anyone with more knowledge could help. I currently have an ok build, but it feels like it's starting to fall off. Here is the pastebin: https://pastebin.com/2wVQQG2A . I have a little extra currency, but am not drowning in exalts by any means. Any tips to help strengthen the build would be greatly appreciated. Thanks in advance!