I do sew a lot because I make quilts, so I'm ahead in that regard, but the last time that I made a garment was a nightdress at school which was <cough> over 40 years ago. 
I choose a 'confident beginner' pattern to have an easy start on sewing clothes (pic below) but I'm also planning to hack it a bit because I can't do anything the easy way. I'm going to change the neckline to scoop neck and also put some pinch pleats into the bodice to look a bit like the top of the jumpsuit. The fabric I've ordered is quite similar to the one in the pattern photo.
While I'm waiting for the fabric to arrive I am binge watching sewing tutorials on Craftsy and YouTube, because I'm a natural researcher.
Pattern is Gabby from Fibre Mood thefoldline.com/product/fibre-mood-gabby-dress/ and it's very much my hot summer's day style.