Okay, so, long story short I bought my pc around 4 or 5 years ago and its old now. I want to start buying upgrades now because I have gotten into streaming. Shameless Plug https://www.twitch.tv/marnikc lol. I know that I need to buy an ssd for sure because I am an idiot and didnt get one in the first place. I am looking to upgrade my pc as much as I need to so that I am able to stream in 1080p60fps and play games in pretty good-decent quality. I understand that this is going to cost a pretty penny but all suggestions are useful. I need a cpu with more cores and a new motherboard because mine is awful. I also want to know if it is even worth it to try upgrading this pc or if i should just try to sell it and buy a brand new one. Please let me know what you guys think. I am willing to spend a decent amount of money if i it is going to save me money in the end. I want to upgrade a lot so please let me know. Thanks guys. I have played around with picking parts out on pcpart picker that would work and I just thought you guys might know a lot more about this stuff than me.
cpu- Intel Core i7-4790
gpu- Nvidia GTX 960
cpu cooler- unknown liquid cooled
MB- MSI Z97 PC Mate(MS-7850)
RAM- ADATA XPG V3 16 GB (2 x 8 GB) DDR3-2133 Memory
SSD- none
HDD- Toshiba 1 TB 3.5" 7200RPM Internal Hard Drive
Case- Cooler Master N400 ATX Mid Tower Case
PSU- High Power HPG-600ST-F12S ATX 600W
Switching Power Supply PSU 115-230V 50-60Hz