First of all and something you hear over and over again; Practise, practise, practise. You won`t be better without it. Why not start a doodle a day challenge, or a time period of 100 days, and post it on social media. I know it`s an old tip but it still works.
Talking about bad doodles, you can use them for something good. Keep them along with good ones, now you can monitor your progress. Remember, it`s not an exam, you can always draw another one. Sometimes you can`t make a good doodle no matter how much you try, it`s like life itself, some days are good, some days challenging.
Have someone else judge your work – it is easier to judge your own work harsher than others. Find someone who doesn`t criticize you in a bad way – that`s a killer on your creativity – but rather give constructive feedback. Feedback can help you improve.
There is no right answer
Stop thinking, just do. It takes practice to stop the ongoing stream of thoughts. Yoga or meditation could help. You could also try doodling blindfolded to force you to feel rather than see, judging and thinking. When you open your eyes and see what you drew, if you`re not satisfied, maybe you can make something else out of it.
Creativity is – at least to me – something that changes day by day. Some days I got hundreds of ideas they all want to get out at once, other days none. When creativity is low, maybe doodle while listening to music could help you. Some listen to people talking on the radio or a meeting. Listening to a story is another idea or look around the room for patterns. Remember your doodle doesn`t have to look like anything it could be an abstract one
There is no right answer. Unless you for some reason have to doodle something specific, there are no rules telling what a doodle should look like. Don`t compare yourself to others too often. Remember to keep your own style and not copy someone else. Find the style that works for you, what you are good at. It might take some testing, googling and brainstorming.
A list that might help; Reasons to doodle even if your “not as skilled” as everyone else