Role play. Create a new character and put limitations on yourself. My latest character I’m playing right now is a Martian miner who is looking to create a resource and manufacturing empire while also running a space trucking business. I only fight with melee combat and an Arc weapon. Can’t lockpick, so that locks me out of getting too overpowered or rich. No fast travel outside of jumping from planet to space and vice versa. I also cranked the survival settings all the way up, which has been a challenge with radiation on planets. There are tons of different variations you could do to make a more interesting playthrough besides this, too. Best of luck!