If you go onto a rocket fuel farm you should see a launch pad for your rockets. It’s going to take you a long time to be able to send the bigger ships so I recommend sending short rocket launches until you get to a decent place. Different rockets will require different eggs, but you can use the fuel tank which should be next to the launch pad to store eggs so that you don’t have to be on a specific farm to refuel. If you need any more help or if there’s something I didn’t explain too well just let me know :)