Only if you're asking as question. (Am I Andrea?) Otherwise, the pronoun goes before the verb. (Yo soy Andrea.)
I am = soy or yo soy
"Yo soy" means "I am" in Spanish. Yo estoy also means "I am". I depends on context.
Yo soy OR Soy
"Yo: means "I". Example "Yo" soy de Corea. ["I" am from Korea.]" wrong because soy means i am so you would say soy de corea. you can say yo soy or just soy
"I am from" in spanish is "Yo soy de...."
"Yo soy feliz" in Spanish means "I am happy."
Yo soy or yo estoy
es yo or soy yo.
'I am in Spanish' (i.e. it's ungrammatical)
"I" in Spanish is "yo." Yo soy artistico: I am artistic.
"Yo Soy..."
'Yo no soy'