Is a 7600K Suitable for What I Use Premiere Pro For?

Hey guys,

I started freelancing, doing some video editing for people here and there and I enjoy it, but I'm a little worried some of my hardware components are slowing down my workflow.

I currently use Premiere Pro almost every day about 30 or 40 hours a week, and only work with and export 1080p footage. The main effects I use are Lumin presets, various blur effects and chroma keying.

The videos I work on for clients are no longer than 10 minutes, and they all include 2-3 video layers, two green screen chroma-keyed layers over a background video. They also include several dozennshort audio snippets and basic text overlays.

MY QUESTION IS: 

What else can I do to optimize my cirrent PC for a more smooth and efficient Premiere workflow, without needing to spend +$1,000 on a 9700k, a new MOBO, OS disk, amd etc?

Do I really need a 9600K/9700K etc. based on the content I'm creating, or would an M2 drive, more ram and MAYBE upgrading my 7600K to a 7700K boost performance?

My current PC Specs:

7600K (3.8GHz 4cores/4threads)

GTX 1060, 3GB

16 GB DDR4 2400 LPX RAM (Just ordered another 16GB)

SAMSUNG 860 EVO 500 GB (OS, PROGRAMS)

M2 DRIVE 970 EVO (500GB (Project files and scratch disk? Or should I get a third SSD for a scratch disk?)

Any help would be appreciated.

Not sure if it would be worth upgrading to a 7700K or sticking with the 7600K, OR if an M2 drive can handle both the prohect files, cache, and scratch.

Thanks.