Need advice on LED strips wiring

Thanks for all the reply and after more learning and mind changing. I have come up with a final schema.

  1. WS2815 5M 60 leds/m has been downgrade to WS2815 5M 30 leds/m, density reduced to bring down the total current.
  2. There will be 8 strips(originally 4) and will be split into 2 groups and each group will have a 12V 30A power supply for it. The reason for this is to reduce the current flowing through the wire so I can use a smaller wire(higher AWG number).
  3. Arduino is replaced by ESP32. I found it is easier to use ESP32 as it just comes with WiFi + Bluetooh.
  4. I have been wiring the capacitors wrong all the time. It has been fixed.

Question Time

  1. As suggested by @PaulRB , I am using a level shifter for the signal line, however, I couldn't find any 74cht14 or 74hc14 but a 74hc04(picture included in the schema). I am not sure if it will do the job. The strange thing is, in the description of that level shifter, it mentioned I should only connect one pair of +ve and -ve. The other pair isn't required, which is mutually exclusive.
  2. As mentioned by @PaulRB and @anon35827816 , I am using a buck converter to leech a 5V line from the power supply for ESP32, however, given the mess/varieties of ESP32, I couldn't figure out what pin I should connect the Vout+ to.