I'm doing a lot of practice lately. I think I'm improving. I really enjoy picking a random colour palette from https://coolors.co/ and starting my design from their. That website is REALLY handy. Prior to doing that, I would pick colour pallets off the top of my head, they would only have like two colours in them, and they would change when ever I ran into issues with it. But with coolors I pick a pallet and stick to it, and I have to find ways to incorporate all the colours. It's a really fun challenge.