[Strategy] How to earn money step by step in Galaxy on Fire 2

The main quest lets you go mining for the second time.
After collecting 25t, you will be notified of encountering pirates!
Return to the space station now! The store function is enabled~
Buy everything in the store because it costs no money!
Equip the weapons you want to use, and then leave the station.
Then kill the pirates! (I forgot whether it was two or three)
After the killing, you are asked to go back, but of course you can't go back ~ Otherwise, how will you get money!
Now just find any planet and fly there.
When you come to other space stations, sell all your extra stuff first! Make sure you don't have anything else except what's equipped on you!
Then remove the God Drill and return to the original space station ~ (the planet with the yellow mark)
Because you removed the drill, it is still in the bag ~
Now equip the drill ~ go back to the store and see if there is still a drill!
Sell that drill!
Remove the drill bit and install it again.
Went back to the store to see, there was still a drill bit! Sell ​​it again!
BUG occurrence conditions: There are no items available for sale in the store. Only the things you have on you can be sold - not just drills, everything will appear in the store after you remove and put it on!
Of course, in terms of value, it must be a great drill~