STRESSSSSSSSSSSSSSSS!!!!!!!!!!

I've been workig in Sale department as a meeting services coordinator for almost a month now. People is fine but work aint fine as Im so new to the job, I made so many mistakes even I hv no comment about myself... so stressful, I hv to correct the contract like 10 times before sending..... until when I can get used to it.... Why is it so difficult for me??? Am I stupid???? hey ya... so stress!!!!!