You could cut down on the amount of words, potentially decreasing cognitive load in the process while increasing readability. E.g.:
"For the list of added variables go to My Variables" could be reworded as "Review My Variables" (i.e. short and sweet).
Hmm, the possibilities to improve:
Go Back -> Transform into icon or "x" in the specific place.
Presented Visually (green for confirm, yellow for warning, red for error) eg:
Condensed and personalize text eg: - "Success! View list of added variable."
we can display their role somewhere under my profile section with a list of permission available for that role, no need to display in front always.
In case the User has multiple roles then it has to login with different credentials or
a better way is to create a new role based on a new set of permissions given to the user, so a user can use the single ...