Where is my mistake in this DFA minimization?

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I'm currently having trouble minimizing my DFA.

I have the following graph: (ignore the numbers after ":")

enter image description here

Using the table minimization method I reached: (x is distinguishable, O is non-distinguishable)

enter image description here However whenever I actually minimize the graph, it is disconnected or is just impossible to actually minimize.

My process (ie. for {q1, q9}):

q9 - 0 -> q11
q1 - 0 -> q2

therefore
{q1, q9) is distinguishable

Could someone please tell me where I'm going wrong with this / where I made a mistake with my minimization process?