I wouldn't be too concerned with average return in the beginning. Just worry about making positive pips every month. With only $1000 you should make sure you're not over leveraged. Make sure you practice good money management and only risk a max of 2% on each trade. Trade micro lots if you have to.
When you start getting the hang of things I would say that 2-5% return per month is a reasonable return.
For beginners, it is understandable to have an ROI of less, 2-5% is fine, for somebody who is still learning the trade, don't expect too much and more care should be done in money management and to take note of the risk involved.