In the "types of income" field, you can enter the words "various" or a combination of "debit/credit cards" and then enter the total dollars you calculate for all the months of 2017 you received income in the amount field. You can also wait to see if you will receive a 1099-K and just enter the total from that form. Either the total you calculate of your monthly information or the 1099-K total (if you receive one) would be entered on that line.
