Estoy bien y haciendo el bien.
I’m fine and Doing? good love
estoy bien. I am good
Estoy bien = I'm OK/doing fine etc.
Fine can be synonymous with good. this words mean "bien" or "bueno"
Just fine thank you!! ^^ And hello to you too!
Doing good = haciendo bueno but this sounds terrible in Spanish. Generally speaking you should say "doing well" which is haciendo bien.
good ones
Tiempos buenos
Well, if you were asked first, you can reply with "bueno, gracias, y tu?"
like you are fine, healthy, ok. get the picture?
El está haciendo bien
Fine means good so they are telling you that you are doing a good job and you should keep it up, unless they say it in a sarcastic voice then it means the opposite.
Yes, that is a grammatically correct sentence. It conveys the idea that the experience has been positive and educational.