Brand new to carving

Just bought a cnc machine (Chinese thing 2418+) I’ve used Inkscape with varying success with Grbl 0.8 and 3.6.1 aswell as USG (though makes some weird choices)

Issues I’m having so far:

  1. Home position seems random
  2. Clean gcode
  3. Setting layers and tool paths

Easel sounds really good but I don’t think I can use it with this machine.

What design, gcode and control programs can I use

Appreciate any help out there