You'll get there.  Don't get hung up on feedback, and remember . . . . for a seller, 'no feedback' from a buyer is better than a negative.

Your first hurdle will be to get 10 feedbacks from buyers to get your DSR ratings (but multiple purchases from any eBayer in a Mon-Sun period only count as 1).  The DSR ratings will help you greatly.

If I were you I would stop leaving follow-up feedback for your buyers.  A lot of eBayers use the 'follow-up to feedback received' for counter an adverse, confusing or ambiguous feedback comment they have received.  Potential buyers that want to look at your feedback will find it easier to assess your feedback if the feedbacks are single line without a follow-up.

Good luck with eBay selling.