Sentences in Spanish

[Cromptu]

Hello everyone!
I have been learning Spanish since 4 weeks by myself via books.
I figured out that a good way to learn this language would be by making sentences. So I have included a few sentences using the words I have recently learnt. I am not really sure about the grammatical accuracy of these sentences so I hope that you all would be kind enough to tell me where I went wrong.
1) Yo compré doce camisas y cinco zapatos.
2) Yo quiero comer ahora.
3) Estoy aburro de mi carro.
4) Pues, preparo pollo y pescado por tú.
5) Me gusta el perro.
6) La mujer esta fea.
7) Nosotros podemos hablamos.
8) El es mi novia.

Gracias