In Reforged Eden, I belive you can also craft more UP through some kinds of… data? items. I’m not sure of the details unfortunately.
Since you ran out of upgrade points (UP) so fast, did you by any chance get the easy levels and UP through HWS Connects, Skill Tree?
If yes, that means you get less upgrade points than you otherwise would by leveling up normally.
If you want, you can do a cb:reset, which will reset your player ingame + private structures. Then you’ll go back to level 1, and you can level up again the normal way.