Marauder Fire Shield Charge > Looking for pointers =)

https://pastebin.com/sDzdeGVj - Path of Building pastebin link

Please don't use abbreviations when suggesting something I don't know how the stuff in the game by far haha...

Also please don't link me to another build to just copy.
1.) I find that boring.
2.) I don't think I can learn as much that way ;)

Do feel free to suggest items that could help move up my dps or survivability. Or if I've made some pitfalls in my skill tree that I should invest points differently.

But most importantly a why to a suggestion will be the most helpful.

Appreciate any and all constructive feedback. Thanks for looking.