Shuts off while driving

So I have the car listed above sedan bought it not long ago. Was running awesome for me until I took it for a drive one day and it just started cutting out when I was driving and started to stall at lights. I have changed body control module and ICC and have not had any luck it’s actually gotten worse. Now it cuts out heaps while driving only if I put my foot down like half way or right down it will spit and spat at me. Also only sometimes when I go around corners or even just doing a u-turn it cuts in and out. Help would be much appreciated I have spent lots of money trying to fix it myself as I thought it wouldn’t cost as much as a mechanic. Turns out I should of sent it there straight away. Thanks in advance!