Do your white flowers often come out too dark when you photograph them? There's a quick fix to stop this happening.
Download a free trial chapter. The A Year With My Camera workshop is a perfect self-paced, low-cost photography course for the Duke of Edinburgh's Award scheme. It is already broken down into a whole year of weekly lessons - all you need to do is decide which sections to do depending on whether you are doing bronze, silver or gold.
3 reasons to use a tripod: 1. tiny apertures or light painting (ie. long shutter speeds); 2. precision; 3. you need an extra pair of hands. That's a lot of photos you can't take if you don't know how to stabilise your camera. (And you don't need an actual tripod for any of this if you have a pile of books or a bag of rice.)