When I have a long piece of different fabrics to sew I sew them in sections. This keeps the weight of the row from pulling on the sewn fabric when sewing each separately. If I have row of blocks I sew the blocks together two at a time, then into two sections, then join the sections together.

Sigh... I think we've all been there at one time... please rest a while and then read all these wonderful ideas... one will seem right to you!! Hang in there!!