Advice on upgrading CPU & MOBO

[Jerrydelabas]

CASE: DEEPCOOL MATREX
MB : ASUS Strix Z370-E
CPU: i7-8700k
CPU COOLER DEEPCOOL 240EX White 120mm AIO
GPU: MSI Ventius 3070ti OC
RAM: 16GB Corsair RGB pro
PSU: EVGA super nova 750w gold
SSD: INTEL 660p NVMe m.2 512GB
HDD: Toshiba X300 4TB

 

[Why_Me]

CASE: DEEPCOOL MATREX
MB : ASUS Strix Z370-E
CPU: i7-8700k
CPU COOLER DEEPCOOL 240EX White 120mm AIO
GPU: MSI Ventius 3070ti OC
RAM: 16GB Corsair RGB pro
PSU: EVGA super nova 750w gold
SSD: INTEL 660p NVMe m.2 512GB
HDD: Toshiba X300 4TB

What country are you located and what is your budget?