I had bad seating last year as a cellist in intermediate youth orchestra. I work on rhythm, as the conductor told me to. So how should I play to get a better seating this year?
Become a better player. And attain seniority. Both are factors in an education setup. The idea of learning an instrument - particularly a stringed instrument - ONLY through band or orchestra class bemuses me. But if this is the situation, yes, try to get some personal or at least small-group tuition.