Here's the thing about creative: most people make it way more complicated than it needs to be. You don't need a fancy app or an elaborate system. You just need a solid art planner template and 10 minutes a day.
I used to think I needed a complicated system for creative. Turns out, the opposite is true. The best art planner templates are the ones that let you start filling them out immediately — no tutorial, no learning curve, no setup. Just print and go.
Some popular options in this category: Art Supply Inventory ($3), TTRPG Campaign Planner ($3 - $4 - $4 for the whole set). Browse the full collection here.
The templates are instant download — no account, no subscription, no nonsense. Print as many copies as you need. If it doesn't work for you, it's free.