Looking for second opinions before emptying my pockets

I'm from Germany and I've pretty much maxed out my budget (950€) with this current build. I initially started with a budget of 800€ but adjusted it because it seemed like a better price-performance ratio.

I will work, game and stream with this PC and would hope that it will last me a long time. I'm planning to run a 3 screen setup with one of them being a 144hz monitor that I'm going to buy a bit later.

Is there anything you would downgrade because it is unnecessary?

Is there anything I am spending too much money on?

Any parts that are not ideal/that you'd swap out?

Are there any incompatibilities?

PCPartPicker part list / Price breakdown by merchant

Type	Item	Price
CPU	AMD - Ryzen 5 2600X 3.6 GHz 6-Core Processor	€187.90 @ Mindfactory
Motherboard	Gigabyte - B450 AORUS M Micro ATX AM4 Motherboard	€84.99 @ Amazon Deutschland
Memory	G.Skill - Aegis 16 GB (2 x 8 GB) DDR4-3000 Memory	€95.89 @ Alternate
Storage	Team - L5 LITE 3D 240 GB 2.5" Solid State Drive	€60.57 @ Amazon Deutschland
Storage	Seagate - BarraCuda 1 TB 3.5" 7200RPM Internal Hard Drive	€38.99 @ Amazon Deutschland
Video Card	Gainward - GeForce RTX 2060 6 GB Phoenix "GS" Video Card	€359.00 @ Mindfactory
Case	Fractal Design - Focus G Mini (Black) MicroATX Mini Tower Case	€49.90 @ Caseking
Power Supply	SeaSonic - FOCUS Plus Gold 550 W 80+ Gold Certified Fully-Modular ATX Power Supply	€92.89 @ Alternate
Prices include shipping, taxes, rebates, and discounts
Total	€970.13
Generated by PCPartPicker 2019-02-21 00:58 CET+0100