Congratulations, Sergey!
A few corrections for you, but your meaning was clear, so well done.
about myselfe myself:
this jule i have complited succesfully internship, and now i'm a doctor - pediatrician)))
yeah, i do it :-D
This July I have successfully completed my internship, and now I'm a doctor - a pediatrician! Yeah, I've made it!
(In English, we use "made it" to show we have done something successfully) :-)
About Myself
This July, I have successfully completed my internship, and now I'm a doctor - a pediatrician.
Yeah, I did it :-D!
Congratulations!