There are some positive observations in the ECHO - Mild Mitral Valve Prolapse
and borderline Left Atrial dilatation, trivial MR / They are minor and present from birth.
The ECHO itself needs no treatment!
If it was a routine check up - you need to do nothing at present. May need to check in a few years again.
If you have any complaint, see the doctor - he can assess whether it has anything to do with this finding - generally not!