Well, it's your choice, do as you see fit, it all depends on your finances. I will tell you how I did when I started playing
spexy , I bought a robot for 1000$ and already pumped it up to level 20. I want to pump it up to level 40 and upgrade its model. I don't know if that's the right decision, but I think it's the best option for me. The main thing is to go every day and in six months the robot will pay off. So think about how to do it better and do it, you can repeat after me if you want.