Start with Using Plastic Wrap to Create Crystal Gel Nails (21 min, Nail Career Education), then Jenna is a Genius! Food Nails! Suzie Responds! (19 min, Nail Career Education). All 428 lessons here are free, from the teachers' own official uploads. You'll need uv/led nail lamp, electric nail drill (e-file), gel polish starter set and a few more basics (about $185 of kit). The book to keep beside you: Milady Standard Nail Technology by Milady.