
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Given $p:x^{2}-2x-8\leqslant 0$, $q:\left[x-\left(1-m\right)\right]\left[x-\left(1+m\right)\right]\leqslant 0\left(m \lt 0\right)$, if $p$ is a sufficient condition for $q$, then the range of real number $m$ is ______.

Present the answer in LaTex format: \boxed{Your answer}
user