Having a hard time with a pattern? Try doing a "mono" tangle.
Complete a tile with just one pattern and gets lots of practice with that particular pattern.
It helps to get proficient !!!
I started out making braids (Ragz) and my tangle turned into Queen Squid ( hee hee)...
You never know till you finish what your tile will look like.
That's the fun of Zentangle Method.
You don't start with the completed idea in mind - the journey is fun to see where it leads.