I sanded to 600 the used CA thin for 4 layers, CA medium for 4 layers - MicroMeshed at that point then used some friction polish (trying different ones).What kind of finish are you using ? . And what do you mean by "good" ?
"Good" depends quite a bit on what you are using as a finish, as well as on the quality of the wood surface when you apply the finish.
It also depends on how long you let the applied finish "set" before you go to the next stage ... whether the next stage is another coat of finish ... or whether the next stage is sanding ... or polishing ... or ??? . There are many things to consider.
Also, the more pens you do the more you will learn. . I think we all have trouble at first in achieving what we perceive to be "good".