I tried it the first time I was really impressed by the thing I did that I'm now ashamed of after trying the second and third time I can even look at my first attempt with my eye

You can check it on my profile
If you keep trying it will work
Incase you find the sketch being hard to get

You can sketch with pencil first and later use your biro to complete it that's my scope, well I hope to grow beyond that one day

Have a nice day