I've been taking photography seriously again for just over a year, and still have a long way to go. The best practice is taking pictures, and learning from mistakes. I need to do more practice with focus modes, as I have always stayed pretty safe and chosen easy shots, but recently went to an Owl Sanctuary, where I shot the Owl photo earlier. I also shot a few of the birds in flight and can say that I managed to get just about everything in focus apart from the birds! So I need to practice on moving subjects, though my biggest novice mistake is rushing, I need to stand back sometimes before I start shooting and assess things more, I miss more good shots by firing off without reflection on what I want to achieve and setting my camera up, changing ISO and forgetting is a favourite. But the more I shoot the better I get gradually. I think learning Lightroom and processing RAW files is another important learning curve, to get the best from your shots.
Anyway a few more shots, D3200 55-300mm f4.5/5.6 DX lens, taken at a local wildlife reserve.
Keep the pics coming