Prepare B2 English LEVEL writen and spoken .High level of Engish. Better Native

Paid in Junes/Junas. Talk about other inerests. I´m searching for someone that can help me in preaparing witten, spkene and listenning exams so upgrading my level to B2. Someone really accurated in grammar ad spelling. Dobble letters and deatisls like that. My level conversation is high but I need someone very polite and accurated about grammar spealling.