Over the course of a year I saved more money and I was able to upgrade the CPU, GPU and SSD.
I replaced the Intel Core i3-9100F with an Intel Core i5-9600K and overclocked it to 4.9GHz.
Then I bought an 1TB SSD, from the same series as I had. Now I have a Samsung EVO Plus 1TB and a Samsung EVO Plus 500GB.
After those upgrades I decided not to wait for the RTX30-series for two reasons: I wanted the power now and I did not have any information about a white 30-series card, since that's the colour I was aiming for. Instead of waiting quite a long time I bought the Gigabyte RTX 2070S Gaming OC 3X White.
Since I had upgraded to better components that generate more heat, I bought 2* 140mm RGB (PWM) fans from MetallicGear. I installed those two in the front, there were two 120mm fans there before. Then I installed one of the 120mm casefan in the back.
You can see the 2070S and in the front the two 140mm fans. In the back is the 120mm fan that was pre-installed in the front before.