And then what happens after the inset? If you are making an inset, you are going to do something with the inset. Just carry on. Do not stop at each step and worry too much - its something most of us do when we start. Get the entire edit done in that area then go back and tidy up if needed.
Most of the time people will add a Subdivision Surface Modifier to smooth the model.
Thanks for your replies!
sorry, I am late for replying.
Yeah I sorted it out finally!
I found out about loop tools in this thread hahahah. But instead of using space as Sergey mentioned, I ended up using circle. Because I actually want it to be round. But, I didn’t know about Loop tools so I was using inset and subdivide the edges manually, it turns out terribly bumpy lol.
So I did the inset first, delete the faces, then I got square empty faces. Then I selected the edges, and using LoopTools → Circle