"I want you" is 'te quiero'.
Your literal sentence is 'te a quiero', which is meaningless.
Is a word missing? Do you mean 'I want to - you'?
If so 'Te quiero (+ infinitive of relevant verb, e.g. 'encontrar' = 'meet', yielding 'I want to meet you')
To say 'I want bread' in Spanish, you would say 'Yo quiero pan.'
To say 'I want meat' in Spanish, you would say 'Yo quiero carne.'
To say 'I want cereal' in Spanish, you would say 'Yo quiero cereales.'
To say 'I want paper' in Spanish, you would say 'Yo quiero papel.'
To say 'I want a chair' in Spanish, you would say 'Quiero una silla.'
To say 'I want to eat a carrot' in Spanish, you would say 'Yo quiero comer una zanahoria.'
"I want to sleep" would be "Quiero dormir".
To say 'I want some folders' in Spanish, you would say 'Quiero unas carpetas.'
I want = Quiero
querer- to want
"What do you want to do?" Say "Que quieres hacer?"
To say 'I want to eat flan' in Spanish, you would say 'Yo quiero comer flan.'