Quick question on some drilling I have been doing lately with my makita rotary hammer

I made several drilling for my curtains with the 6mm drill bit and use those 6mm anchor plug

I realised of 10 holes... Very likely 4 would be quite huge and the anchor plug would be too loose to drive any screw in

Is this because when I drill I move too much hence the bigger drill hole?

Should I use just rotary without hammer? Or get some. Bigger anchor plugs? Not even sure if there are bigger ones

So far been able to mod the anchor plug a bit to fit...

What did I did wrong here?

hmm a 5.5mm drill bit? but some of the holes will have no issues with the 6mm drill bit ...

i think i moved too much when i am drilling ...

just recently completed refreshing all my bosch cordless tolls... 



later might get a foldable trolley for these as i will bring all these to my parents and parents-in-law house most of the weekend for repairing and diy stuff...