I can't change the position of the letters

I want to adjust the position of the letter on the plot graph, but it won't move.

For future reference, it's very difficult to troubleshoot code posted as a screenshot. You will almost certainly get more traction on your questions when you provide an accompanying REPRoducible EXample, or reprex:

For this small problem though, I think you just need to add more than 15 to ing:

text(ing + 35)

If you want to shift left/right, pass the x axis points first:

text(1:7 + .2, ing)

For me, I prefer to use ggplot2::geom_text(), which has built-in arguments for doing this sort of thing.

Thank you so much for your help!!

Of course! If this answered your question, would you mind marking it as a solution? This will help others with the same problem know you found an answer, and it will show that the question doesn't need help anymore. Thanks!