1. I want TO be a lawyer.
2. I like TALKING with people and DEFENDING THEM (možno ešte lepšie: DEFENDING THEIR INTERESTS).
3. I will earn a lot of money. (bez here)
4. My uncle is a lawyer and WILL TUTORE me. (tutored je minulý čas, ty chceš povedať, že ti bude robiť mentora, nie že ti ho už robil).
5. I would like to ATTEND a high school...

PS: Zámeno "ja" (I) sa v angličtine vždy píše s veľkým písmenom.