My translations are screwed up

I have been training my dogs in Spanish for 4 years. I spent 8 years in Spanish and was bi-lingual. However, a brain injury wiped it out. I now only remember bits when I get upset or really messed up in the hospital :-P

I have had teachers from Cuba, Puerto Rico and Espana. So now I think the commands I am using I have mixed things up, or mixed tenses. If someone could help with the commands below and give me the correct ones:

(Also, please excuse the lack of correct grammerical marks. I don't have my keyboard set up for them)

Stay: Estancia
Sit: Sientese
Stop: Parada
Down: Abajo
Silence: Silencio
Come here: Venido aqui!
Up: Enima de
Back: Parte posterior
Lay down: Coloque
Get up: Levantese
Go to you house!: Vaya a su casa!
Get down!: Consiga abajo
Careful: Con cuidado
Behave: Comportese
Listen to me: Eschucha me
Let's Go: Vanamos of Vamos

I need command for UP as well.

Please do not laugh at my translations. They are literally stuck in mind and I will pop out a phrase. I am hoping to restart classes soon to rewire my brain from the brain damage and get my spanish back. Hopefully no more waking up from surgery to find a spanish translator and I can't conciously speak it... *cry*

[Stay: Estancia it could be "quedate quieto" Quieto" Depends on the situation.
Sit: Sientese if you use sientese, you are very formal, instead use sentate, o sentado i'd rather use the latter one
Stop: Parada basta , if it means stop doing sth.
Down: Abajo ok
Silence: Silencio ok
Come here: Venido aqui! veni acà
Up: Enima de arriba
Back: Parte posterior hacia atràs
Lay down: Coloque acostate/acostado i'd rather use the latter
Get up: Levantese arriba
to you house!: Vaya a su casa! a tu lugar
Get down!: Consiga abajo recostado
Careful: Con cuidado ok
Behave: Comportese comportate
Listen to me: Eschucha me ok, but all together, escuchame
Let's Go: Vanamos of Vamos vamos

I need command for UP as well. it is ARRIBA, if it's sitting or laying down
hope it helps,
By the way, if you can have a look at my threads i posted on this same field, i'd appreciate it, nobody has aswered them yet.