I started going on harvest when I was 15 yrs old. Naturally the only thing I could do legally was run a combine, but it a good way to start. The guys i go with every yr say that its better to start them early then when they are older and think they know it all. Younger teenagers tend to listen better beacuse they don't have as much experience as the older ones somtimes. There are always people looking for help. There are many guys you're age and younger going, so I don't think you'll have trouble finding someone to take you. Have fun!