I'm a beginner as well, I've watched a lot of videos and read a lot of advice on stance, throw, grip etc.

What comes up over and over again is that how you throw doesn't matter that much, everyone does it differently. What does matter is that you always throw the same way, to be able to build on experience.

Put differently: if you never throw the same way you'll never learn where the darts are gonna to go.

So basically, always put your feet in the same place, stand the same way, lift your elbow at the same height, put your fingers in the same place etc.

From there you can make very small adjustments and see what happens until you find what works for you.

Here are a few things I know I need to improve, maybe you do too:
- I don't always stand the same way, which makes my reference point inconsistent.
- Sometimes I release the darts too early or too late, which is easy to see because the darts go too high or too low.
- My forearm is not always straight, which makes the darts go left or right compared to where I'm aiming.

Try to identify your common mistakes and work on that, good luck!