How lovely! I just got mine this summer (an HQ Avante 18"). I think you are extremely brave to have that quilt on it already. It looks like you are doing motifs in each block - that's a great idea for getting used to the machine. I loaded some muslin and made 3 practice samplers before I dared put a real quilt on mine. Relax and practice - and have fun - is the best advice I can offer. Some large meanders might help you relax and get a better feel for the system, if you find you are still tense (trying to stay in little squares will definitely keep you tense).