Were you trying to say I don't speak Spanish, or you don't speak Spanish? Because "no habla espanol" can either mean he/she does not speak Spanish, or you (formal) does not speak Spanish. To say "I do not speak Spanish," it would be "No hablo espanol." If you meant "he does not speak Spanish" because you were saying that I don't speak Spanish, then the reason I was using Spanish was so that I could practice it, and practice makes perfect. Also, I'm much younger than you and we're one big family on this site, so feel free to use the informal conjugations for me, which would have been "no hablas espanol" if you were telling me I couldn't speak it.
Hablar - to speak
Hablas - you (informal) speak
Habla - he / she / you (formal) speak(s)
Hablamos - we speak
Hablan - they / you (plural) speak
Hablar - to speak
Hablas - you (informal) speak
Habla - he / she / you (formal) speak(s)
Hablamos - we speak
Hablan - they / you (plural) speak