question here is abt the river play,this is a new players to me,first hand we played together,so no reads!!
i've opted to check because:

1-i think a random wont call here with 10x
2-he wont turn his hand in to a bluff either but checking gives him a chance to bet missed draws
3-mini bet to induce i think is bad idea vs total unknown
4-overbet for value required a bit of dynamyc

the only thing i hate abt this hand his my turn size,too small vs unknown with so many draws out ther i think,good size to induce vs competent tho..

Also,because we can assume that if i'd check the flop he would bet very frequently,is this a good spot to c/raise on the flop???with my QdQh i'm blocking lots of draws,so once he call my flop/raise we could put him on a made hand rather then a drawing one,therefore he might call also a gigantic turn shove because i'm repping a draw myself..do i make any sense or i'm still drunk after xmas????

i would just bet the river vs unknown because who knows what he can call you with and u bet so small on turn u can bet like 44 on the river and still get called with worse

checking is ok but def like that more if we bet stronger on turn which like u said u should have

I would only go for c/r on flops vs players I know bet when checked to and/or get frisky vs that line. I like using c/r vs players that know its a spot I normally c/f so it protects my future checks if I wnat to pot control like A9 or 10x