U turn with left hand...

[spdcbr]

I'm really young so my fingers are too short to do the U with the LUB. I tried starting OH cubing, but stopped after I hit the U. LOL

 

[byu]

My problem is doing R' not U.

 

[DavidWoner]

Try pushing on FLU with the back of your index finger, or rotating quickly and doing R

 

[trying-to-speedcube...]

My problem is doing R' not U.

Put your ring finger on DBR, and pull it back. It might feel awkward at first, but if you keep practising it'll get pretty easy.

(Comes from a guy with 33 second average on OH)