I am doing well in regards to health, would translate to 'Yo me siento bien'.
Está bien.
¿Cómo estàs ustedes? is how you say "how are you doing everyone?" in spanish.
Esta todo bien?
Está bastante bien.
Hacer
Doing good = haciendo bueno but this sounds terrible in Spanish. Generally speaking you should say "doing well" which is haciendo bien.
A problem in English is that we use the progressive form for almost everything. It is not used very much in Spanish. So "doing that" is usually expressed in Spanish in the simple present tense. "Hago eso", or I do that. If you are doing that right now, you could use the progressive in Spanish, or "Yo estoy haciendo eso".
To say the table is right there in spanish its: "La mesa está allí"
Yo tenía razón would be the best way to say "I was right" in Spanish.
Que hace?
haciendo lo
¿Qué haces?