Absolutely not, keep going. Keep in mind that we are always learning and everyone is on a different level. If you get stuck there is plenty of willing people out there to help, your classmates, teachers, etc. Nobody knows everything. We quilt because we enjoy it, or should enjoy it, do not stress over being perfect. When your blocks are done and made into a quilt, there will not be another one to compare it to. I'm sure you will love it. Keep on sewing and I'm sure you will be proud of the results.