Need advice with my build :)

Im pretty new to the game and need advice on what to upgrade next.
I know i need to level up but i need advice on gear for the most, im having problems with bosses..

Build:[https://poeplanner.com/AQABABIABAIAagD2Al0DLQXpBSAGiwaiBiYKjws8DjAScRR1FNwXkRhVGqob4yD2I_0kdCZjKrQtUy7ML3wwsDGSNeg2hjlSOjFDfkd9Sv9MRk2STSpOR1FjUclW-lavWK9bOV_aXyFh7GIXY01loGc7b6B07XTXdw14K38Hgi6D2YTvhI-FYIZ2h-2I8Ip9jWCP95Itm3ikbql6r6uw8rUBtp-8Nr2nvq2-GsAHwYLB1cGCxBnH9ctv01LUfte92HzZwdq93Pje7-Gf4w_nVOfa6XHseu6O8gL4GPre_wIAEgGWA1RocmVhZCBvZiBIb3BlAAAAAAD__wNzjAEDAHaBAf7-bIEB9v8AAAAA3gFDYXJyaW9uIFJ1aW4AAAAAAANDAAEJAIUAAQ0AlgABBgAB0gABBAAAAACpAVBob2VuaXggVHdpbmUAAAAAAAatFwEWAFEEAToAZgwBXAB_DAE7AA8LATAAIQ0BrwABAYABAQAAAADdAUVudGhyYWxsaW5nIEdsYXJlAAAAAAADGwEBGgDoAAENAEoBAQkAAewBAQEAAAAAwABNaW5kIEdvYWQAFAAAAAdOEwEbAGQMAU8ACgsBFAASEQEdAEsCAR0AmxQBHgDIFwENAAABswgBCgAAALUBABQAAAACGwACAQC-_ygAAQEAAUOHAAAAANYBABQAAAACGAABEQAOAAEsAAAAAAAgAUFwb2NhbHlwc2UgS2VlcAAHAAABAgUUFgIXADAA8BECEQAgAJ0CASsAEREBEgDOBAFGAAABwwcB8f8AAXUCUHJheGlzAAAAAAD__wRIiwErAIeAAVABW5QB-P9zkwEIAAEIiwEZAAAAASIBTGlvbidzIFJvYXIAAAAAAP__BKCMAQEAkIEBAQCUkgFLALeTARQAATmHAAAAASQBUnVtaSdzIENvbmNvY3Rpb24AAAAAAP__AmuCARAAWZUBBwABOYcAAAABnAJDYXJjYXNzIEphY2sAFAAAAP__BhKQAY4AaIoBNgBIgQEMAKOBAS0AmYEBKQBrhgH-_gAAAAD_AENhdGFjbHlzbSBDbGF3ABQAAAAE6xECHQAYAGIMATIAFREBLQC1BAEhAAABzwgEAAAAAAAAZAAAAAkAR2xvb20gU2NhcmFiAAAAAAAF_AwBLgA_DAEMAJwCASkATAIBIQDNBAEyAAGiiwEaAAEcHAGO8gAA-wFUb3JtZW50IFR1cm4AAAAAAAX-DAE0AF8MARgAdQwBQQCdAgEsAEwCASIAAf-LAQ8AAAAB-AFUaGUgU3VycmVuZGVyABQAAAD__wcPiAEeAPOQAYwAuIoBTgCehwH6AMSAAQYAiYcB3AWNggEBAAFXigEnAAAAAKcCVm9ydGV4IFNvbmcAHQAAAAbuEgGsAHkSAR4AERIBDABiFwEBAA8FAhEAGwAZDQEBAAJcIgEOAE8fAgIABAAAAADLAQAUAAAAAgAAAVgAIAABJgABOYcAAAAQD___BwsMBA0IDgIFEQoGCQJv0wA7bwEBCwADAQAAAAMA_____________zwAAAAA/url]