The rolling R part is wrong btw
Quick basics of the transatlantic accent. I only started learning a couple of days ago, so it's definitely not perfect yet, but I really wanted to share the general concepts :) (so the rolling r is apparently RP English and not Transatlantic)
I found this video very helpful too:
https://youtu.be/hEqesVTEFPM
And this is the j-Glide one, that I meantioned:
https://youtu.be/LDamOOF5nGI
If you have questions message me on Instagram @vlikevanilla or post a comment!